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Fourth Month of Pregnancy: Symptoms, Baby Growth, Diet Chart and Care Tips

Second Trimester
Written by - Mylo CareLast updated: Oct 7, 2026
Fourth Month of Pregnancy: Symptoms, Baby Growth, Diet Chart and Care Tips
Read time21 min

Month Four: Welcome to the Golden Trimester

Welcome to the fourth month of pregnancy, covering weeks 14 to 17, and the start of the second trimester. Many moms call this the "golden" or "honeymoon" trimester, and for good reason. Nausea usually fades, energy comes back, and your baby bump starts to show.

Your baby is busy too. This month they can make faces, suck their thumb, and even hear your voice. Some moms, especially in a second pregnancy, may also feel the very first flutters of movement toward the end of this month.

In this guide you will learn:

  • How your baby grows from a lemon to the size of an avocado

  • What your 4 months pregnant belly looks like

  • New symptoms of the second trimester and how to manage them

  • The iron and calcium tablets you'll start this month, plus an Indian diet chart

  • Important tests, the Td injection, sleeping positions and warning signs

How Many Weeks Is 4 Months Pregnant?

Four months pregnant covers weeks 14 to 17. It is the first month of the second trimester, which runs from week 14 to week 27.

Pregnancy month

Weeks

Trimester

Month 3

Weeks 9 to 13

First trimester

Month 4

Weeks 14 to 17

Second trimester (first month)

Month 5

Weeks 18 to 22

Second trimester

Month 6

Weeks 23 to 27

Second trimester

Your Baby's Growth in Month Four: From a Lemon to an Avocado

By the end of this month, your baby is about 12 to 13 cm (5 inches) long and weighs about 110 to 120 grams (4 ounces). Their body is catching up with their head, and their movements are becoming more purposeful.

Week

Baby's length (approx.)

Size comparison

Key developments

Week 14

8.5 to 9 cm

Lemon

Skin starts to thicken; fine hair begins to grow; external genitals are fully formed

Week 15

10 cm

Apple

Baby makes purposeful movements like sucking the thumb, yawning and stretching

Week 16

11.6 cm

Avocado

Ears are developed enough to hear your voice; the eyes, though closed, react to light

Week 17

12 to 13 cm

Pear

Fat stores begin to form under the skin; the skeleton keeps hardening

Milestones to celebrate this month

  • Your baby can hear you: By week 16, the ears are developed enough to pick up sounds. Talk, sing or read to your baby.

  • Facial expressions: Your baby can squint, frown and make faces, though these are still random reflexes.

  • Thumb sucking: Your baby practises sucking and swallowing, skills needed for feeding after birth.

  • Light sensitivity: Even with closed eyes, your baby can sense bright light and turn away from it.

  • Stronger bones: The skeleton continues to change from soft cartilage to bone.

Sources: Cleveland Clinic, Fetal Development and NHS, 16 weeks pregnant.

4 Months Pregnant Belly: Your Bump Begins to Show

This is the month most first-time moms start to see a real baby bump. Your uterus rises out of the pelvis and, by the end of the month, you may feel its top a few finger-widths below your belly button.

What you might notice

Why it happens

A small, rounded bump below the belly button

The uterus has grown out of the pelvis

Your regular clothes feel tight around the waist

Your belly and waist are expanding

A dark line down the middle of your belly (linea nigra)

Pregnancy hormones increase skin pigment

Itchy skin on the belly

Skin is stretching

Bump looks bigger in a second pregnancy

Abdominal muscles stretch more easily

Bump size varies a lot. A small or big bump at 4 months is usually normal. Your doctor checks your baby's growth through scans and belly measurements, not bump size.

Tip: Start moisturising your belly, breasts and thighs daily with a gentle oil or cream. It eases itching and keeps skin supple as it stretches.

4 Months Pregnant Symptoms: What to Expect in the Second Trimester

Many early symptoms fade this month, but new ones appear as your body and baby grow.

Symptom

Why it happens

What helps

More energy and appetite

Nausea fades as hormones settle

Choose nutritious snacks instead of junk food

Round ligament pain (sharp twinges on the sides of the belly)

Ligaments supporting the uterus stretch

Move slowly, avoid sudden twists, rest on your side

Belly tightness (pet tight hona)

The uterus is stretching; occasional painless tightening is normal

Rest, drink water and change position; see a doctor if it's painful or regular

Bleeding or swollen gums

Hormones and extra blood flow

Use a soft toothbrush; floss gently; visit a dentist

Stuffy nose and nosebleeds

Increased blood flow to the nose

Steam, saline drops, a humidifier

Heartburn and indigestion

Hormones relax the stomach valve; the growing uterus pushes up

Small meals, avoid spicy food, don't lie down after eating

Constipation

Progesterone slows digestion; iron tablets can add to it

Fibre, water, walking; ask your doctor about stool softeners

Back pain

Changing posture and loosening joints

Good posture, supportive footwear, gentle stretches

Leg cramps

Changes in circulation and minerals

Stretch your calves before bed; stay hydrated

Skin changes (dark patches, linea nigra)

Increased pigment from hormones

Sunscreen; most fade after delivery

Headaches and dizziness

Blood pressure changes

Eat regularly, drink water, stand up slowly

More vaginal discharge

Higher oestrogen

Cotton underwear; see a doctor if it smells or itches

Also read: Pain in the anus during pregnancy · Do pregnant women fart a lot?

Can I Feel My Baby Move at 4 Months?

Possibly, but don't worry if you can't yet. Most moms first feel movements between 16 and 24 weeks. First-time moms often notice them only after 20 weeks, while moms in a second pregnancy may feel them earlier.

The first movements, called "quickening", feel like gentle fluttering, bubbles, or a swirling feeling low in your belly. They're easy to mistake for gas. Over the coming weeks, they'll grow into clear kicks and rolls.

Source: NHS, Your baby's movements.

Changes in Your Body and Mind This Month

Physical changes

  • Weight gain begins: Most women start gaining weight steadily in the second trimester. Your doctor will track it at every visit.

  • Breasts keep growing and some women notice small drops of yellowish fluid (colostrum) from the nipples. This is normal and shows your body is preparing to feed your baby.

  • Hair and nails may grow faster and look thicker.

  • Blood volume keeps rising, which can make you feel warm and cause visible veins.

Emotional changes

With nausea gone and your bump showing, many women feel happier, more energetic and more connected to their baby this month. It's a great time to start planning, bonding and enjoying your pregnancy.

  • Talk or sing to your baby, who can now hear you.

  • Plan your baby's needs and your budget with your partner.

  • If you still feel anxious or low for more than two weeks, speak to your doctor.

Tests, Injections and Doctor Visits in Month Four

You will usually see your doctor once this month for a routine check-up.

Check-up or test

Why it's done

Blood pressure and weight

Monitors your health and your baby's growth

Urine test

Checks for protein, sugar and infection

Haemoglobin

Checks for anaemia before and after starting iron tablets

Baby's heartbeat (doppler)

Lets you hear your baby's heartbeat at the clinic

Quadruple marker test (if advised)

A blood screening test done between weeks 15 and 20, mainly if the NT scan and double marker test were missed

Td (tetanus-diphtheria) injection

Protects you and your baby from tetanus; usually 2 doses given 4 weeks apart in a first pregnancy, as per your doctor's schedule

Plan ahead: Ask your doctor to book your anomaly scan (level 2 or TIFFA scan), which is usually done between weeks 18 and 20. It checks your baby's organs and growth in detail.

Also read: Is it safe to take Ecosprin 150 in pregnancy? · When should you take Ecosprin 75 during pregnancy?

Fourth Month Pregnancy Diet: Eating for Your Baby's Growth Spurt

With your appetite back, it's time to focus on balanced meals. From the second trimester, your body needs a little more energy, about one extra healthy snack or small meal a day. That doesn't mean eating for two.

Supplements you'll start this month

Under India's Anemia Mukt Bharat programme, pregnant women take one iron and folic acid (IFA) tablet daily from the second trimester (60 mg iron + 500 mcg folic acid) for at least 180 days. Doctors also usually prescribe calcium tablets from this month. Source: PMC, Anemia Mukt Bharat study.

Tips for taking iron and calcium:

  • Don't take iron and calcium tablets together. Keep a gap of at least 2 hours, because calcium reduces iron absorption.

  • Take iron with vitamin C (lemon water, an orange or amla) to absorb it better.

  • Avoid tea and coffee for 1 hour before and after your iron tablet.

  • Iron can cause black stools and constipation. Eat more fibre and drink more water.

Key nutrients for month four

Nutrient

Why it matters now

Indian food sources

Iron

Prevents anaemia as blood volume rises

Palak, methi, jaggery, dates, ragi, bajra, eggs, chicken, mutton

Calcium

Builds your baby's bones and teeth

Milk, curd, paneer, ragi, til, almonds

Protein

Supports your baby's rapid growth

Dal, rajma, chana, paneer, eggs, soya, chicken, fish

Omega-3 (DHA)

Brain and eye development

Walnuts, flaxseeds, chia seeds, low-mercury fish

Vitamin D

Helps absorb calcium

Morning sunlight, eggs, fortified milk

Fibre

Prevents constipation from iron tablets

Fruits, vegetables, dalia, oats, whole grains

Vitamin C

Boosts iron absorption

Amla, guava, oranges, lemon, tomatoes

Sample 4th month pregnancy diet chart (Indian)

Time

Meal

What to eat

7:00 am

Early morning

1 glass warm water + 5 soaked almonds, 2 walnuts and 2 dates

8:30 am

Breakfast

Vegetable poha, ragi dosa, moong dal chilla, paneer paratha with curd, or 2 eggs with whole wheat toast

11:00 am

Mid-morning

1 fruit (orange, guava, apple, banana) + iron tablet with lemon water

1:30 pm

Lunch

2 to 3 rotis or 1 cup rice, dal or rajma, a green sabzi, salad and curd

4:30 pm

Evening snack

Sprouts chaat, roasted makhana, a vegetable sandwich or a protein-rich biscuit with milk + calcium tablet

7:30 pm

Dinner

Roti with paneer, chicken or fish curry, a vegetable sabzi, or vegetable khichdi with curd

9:30 pm

Bedtime

1 glass warm milk

Drink 10 to 12 glasses of water a day, especially now that you're taking iron tablets.

Foods to avoid in the fourth month

Avoid

Why

Alcohol and smoking

Can harm your baby's growth and brain development

Raw or undercooked eggs, meat and seafood

Risk of salmonella, listeria and toxoplasmosis

Unpasteurised milk and soft cheeses

Can carry listeria

Liver and liver products

Too much vitamin A can harm the baby

High-mercury fish (shark, swordfish, king mackerel)

Can affect the baby's nervous system

More than 200 mg caffeine a day

Linked to low birth weight

Raw or semi-ripe papaya

Contains latex that may trigger contractions

Too much fried, salty or sugary food

Can lead to excess weight gain and raise blood sugar and blood pressure

Source: NHS, Foods to avoid in pregnancy.

4 month pregnancy me kya kha sakte hai? Quick answers

Food

Can you eat it?

What to keep in mind

Banana

Yes

Great for energy and potassium; limit if you have high blood sugar

Maggi / instant noodles

Occasionally

High in salt; add vegetables and keep it rare

Chicken

Yes

Only fully cooked; excellent for protein and iron

Star fruit

In moderation

Avoid if you have kidney problems

Radish (mooli)

Yes

Wash well and eat fresh; can cause gas in some women

Arbi

Yes, cooked

Always cook it well; never eat it raw

Anjeer (figs)

Yes, in moderation

Good source of iron, calcium and fibre

Aliv (halim) seeds

Small amounts, with your doctor's advice

Rich in iron, but have them only in small amounts

Ripe papaya

In moderation

Avoid raw or semi-ripe papaya

Also read: 4th month pregnancy diet chart · Second trimester diet chart · Banana during pregnancy · Star fruit during pregnancy · Radish in pregnancy · Arbi in pregnancy · Aliv seeds in pregnancy · Mylo protein biscuits for pregnancy

Fourth Month Pregnancy Care: Do's and Don'ts

Do's

Don'ts

Take your iron and calcium tablets daily, 2 hours apart

Don't take iron with tea, coffee or milk

Exercise for 30 minutes most days (walking, prenatal yoga, swimming)

Don't do contact sports, heavy lifting or exercises lying flat on your back for long

Start sleeping on your side, ideally the left

Don't stand or sit in one position for long hours

Wear comfortable, loose clothes and a good maternity bra

Don't wear high heels or tight belts

Moisturise your belly, breasts and thighs daily

Don't use harsh chemical skin or hair treatments without asking your doctor

Do pelvic floor (Kegel) exercises

Don't ignore bleeding gums; see your dentist

Talk, read and sing to your baby

Don't skip your check-ups and scans

4 month pregnancy me kaise sona chahiye? (Best sleeping position)

Start getting used to sleeping on your side, ideally the left. It improves blood flow to your baby and eases pressure on your back. Put a pillow between your knees and one under your belly for comfort. Sleeping on your back is okay for now, but avoid it as your bump grows, especially after 28 weeks.

Can I climb stairs at 4 months pregnant? (Sidhi chadna chahiye ya nahi)

Yes, for most healthy pregnancies. Climb slowly, hold the railing, wear non-slip footwear, and don't carry heavy loads. Your doctor may advise avoiding stairs if you have a low-lying placenta, a short cervix, or a history of bleeding.

Is sex safe in the fourth month?

Yes, for a healthy pregnancy. Many women find their desire increases in the second trimester. Try comfortable positions that don't put pressure on your belly. Avoid sex if your doctor has advised against it because of bleeding, placenta previa or a risk of preterm labour.

Is it safe to travel now?

The second trimester is the best time to travel. Carry your medical records, stay hydrated, wear compression socks on long journeys, and walk every 1 to 2 hours.

Also read: When to stop bending during pregnancy

Warning Signs in the Fourth Month: When to Call Your Doctor

The second trimester is usually the most comfortable stage of pregnancy. Still, contact your doctor right away if you notice any of these signs.

Warning sign

What it could mean

Vaginal bleeding or spotting

Placenta problems or risk of miscarriage

Painful, regular belly tightening or cramps

Possible preterm labour or another complication

Watery fluid leaking from the vagina

Possible leak of amniotic fluid

Severe headache, blurred vision, or sudden swelling of the face and hands

Possible high blood pressure

Fever above 100.4°F (38°C)

Infection

Burning, pain or blood while urinating

Urinary tract infection

Severe or constant pain on one side of the belly

Needs urgent medical review

Extreme tiredness, breathlessness or a racing heart

Possible severe anaemia

Source: NHS, Miscarriage.

Your Fourth Month Pregnancy Checklist

  • Start iron and calcium tablets as prescribed

  • Attend your monthly check-up (blood pressure, weight, urine, haemoglobin)

  • Get your Td injection as per your doctor's schedule

  • Book your anomaly (level 2) scan for weeks 18 to 20

  • Buy maternity clothes and a supportive maternity bra

  • Start a daily skincare routine for your belly

  • Start sleeping on your side with a pregnancy pillow

  • Begin pelvic floor exercises and gentle prenatal yoga

  • Visit your dentist for a check-up

  • Start talking and reading to your baby

Frequently Asked Questions About the Fourth Month of Pregnancy

1. How many weeks is 4 months pregnant?

Four months pregnant covers weeks 14 to 17. It is the first month of the second trimester.

2. How big is the baby at 4 months?

By the end of month four, your baby is about 12 to 13 cm (5 inches) long and weighs around 110 to 120 grams (4 ounces), about the size of a pear.

3. Does the belly show at 4 months pregnant?

Yes, most women start to see a small bump this month. In a first pregnancy, it may be quite small. Every body is different.

4. Can I feel my baby move at 4 months?

Some moms, especially in a second pregnancy, feel flutters around 16 weeks. Most first-time moms feel movements after 20 weeks.

5. What is the 4 month pregnancy injection?

It is usually the Td (tetanus-diphtheria) vaccine, which protects you and your newborn from tetanus. Your doctor will give you the schedule.

6. Is belly tightness (pet tight hona) normal at 4 months?

Occasional, painless tightening is common as your uterus stretches. If the tightening is painful, regular, or comes with bleeding or fluid leakage, contact your doctor right away.

7. Is it normal for the breasts to leak at 4 months?

Yes. Some women notice small drops of yellowish fluid called colostrum. It's normal and nothing to worry about. Many women don't leak at all, which is also normal.

8. What is my baby's position at 4 months?

Your baby floats freely in the amniotic fluid and changes position often. Your baby's position only matters later, usually after 36 weeks.

9. When should I start iron and calcium tablets?

In India, doctors usually start iron and calcium tablets in the second trimester, from around the fourth month. Always follow your doctor's prescription.

10. Which is the best sleeping position at 4 months pregnant?

Sleeping on your side, ideally the left, is best. Use pillows between your knees and under your belly for comfort.

The Bottom Line

Month four is the start of the most enjoyable part of pregnancy for many women. Nausea fades, energy returns, your bump shows, and your baby can now hear your voice. Start your iron and calcium tablets, eat a balanced diet, stay active, and don't forget to book your anomaly scan. Next month, you'll likely feel your baby's first kicks. Stay tuned for our guide to the fifth month of pregnancy.

Disclaimer: This article is for general information only and does not replace medical advice. Always consult your gynaecologist about your own pregnancy.

References

  1. Cleveland Clinic: Fetal Development, Stages of Growth

  2. NHS: 16 weeks pregnant

  3. NHS: Your baby's movements

  4. PMC: Anemia Mukt Bharat IFA supplementation study

  5. NHS: Foods to avoid in pregnancy

  6. NHS: Miscarriage

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice. Consult with a physician or other health care professional if you have any concerns or questions about your health. If you rely on the information provided here, you do so solely at your own risk.

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