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In this Article

    Reproductive health

    When Do Sex Organs Develop In Your Baby In The Womb?

    Written on 17 June 2019

    Expert Verified

    Dr. Vani Puri

    Obstetrician- Gynecologist, Infertility Specialist - MBBS| DGO, DNB

    Do you have an upcoming sonogram process? Are you excited to learn more about your baby as well as the overall fetal growth? Indeed, a sonogram can help the doctor monitor your unborn baby. Apart from that, your doctor may also look out for unusual conditions or problems in your womb.

    One of the most exciting things about the phase of pregnancy is to have the curiosity to know whether you will have a boy or a girl. Your doctor knows it but will make sure it’s a surprise for you as it’s illegal to find out the gender of your child in our country.

    Apart from that, your gynecologist may also provide you with a fetal growth chart to help you learn more about your baby’s growth. Besides, your doctor might also hide the genitals of the unborn child during the process of a sonogram.

    How Are Doctors Able To Differentiate Between A Male And Female Baby In The Womb?

    Genital ridge appears around 7-8 weeks of pregnancy and is easy for the doctors to differentiate between the development of female and male sex organs inside the womb. A woman's eggs contain X chromosomes, whereas the sperms of a man carry either X or Y chromosomes.

    The 23rd pair of chromosomes develop the sexual organ of the baby. A combination of XX chromosomes means that the baby is female, and a combination of XY chromosomes means that your child is male.

    During the first few weeks of your pregnancy, the genital structure of the baby will be the same internally and externally. The baby will start producing hormones that stimulate the growth of the sexual organs of the baby. Your baby’s gonads will eventually change and will either become testicles or ovaries later on.

    The phallus will turn into either a penis/scrotum or clitoris/labia. Around the 14th week of your pregnancy, the baby's urinary system and other organs are functioning correctly inside the womb. The external sex organs of the baby are fully developed by the 20th week of pregnancy. As your baby grows, your body will feel a bit heavy. Thus, a fetal weight chart might help you keep track of your baby’s growth!

    By the 9th week, in boys, the genital ridge will begin to lengthen the penis, and the prostate will be formed by the 10th week. The penis of the baby will keep growing until the third trimester. By the 11th and 12th week, the genital ridge will develop into ovaries with approximately 7 million primitive eggs in girls. These eggs will slowly reduce, and your baby girl will be left with approximately 2 million eggs by her birth.

    What Are Some Tests You Can Take To Ensure Your Baby’s Good Health?

    By the third month of pregnancy, the uterus and vagina of the baby will be fully formed when the paramesonephric ducts fuse. Your doctor recommends you undergo various tests to confirm the excellent health of the baby, and they are as follows:

    1. 3D Ultrasound-

    Your doctor can identify the gender of the baby quickly. The 3D ultrasound is an advanced technology because earlier in 2D ultrasound, the doctor couldn’t detect the gender of the baby.

    2. Amniocentesis-

    This test is done between 18-20 weeks of your pregnancy. It not only determines the gender of the baby but also identifies if there are any congenital disabilities or genetic defects in the baby. If the pregnant lady is above 35 years of age, the doctor strongly recommends that she undergo this test.

    3. Chorionic Villus Sampling (CVS)-

    This test is done around 10-12 weeks of your pregnancy and is predominantly done in pregnancies that are at high risk.

    Are There Any Risks Associated With An Ultrasound Scan?

    There aren’t any side effects associated with an ultrasound scan. Thus, this is because there isn’t any exposure to harmful radiation. However, a few scans, including CT scans, might involve radiation.

    You may or may not experience discomfort during your ultrasound scan. Thus, this is generally because the probe used in the process may be pressed a bit deeper into your tummy. Yet again, internal or external ultrasound scans have any associated risks. In fact, they are completely painless.

    When you opt for an internal scan, let the doctor know if you suffer from any latex allergies. The doctor can then opt for a probe that does not contain a latex cover. Apart from that, endoscopic ultrasound tests can be comparatively uncomfortable. Besides, they may also cause a few side effects, including sore throat and bloating. You may also be at risk of suffering from internal bleeding.

    What Are Some Of The Benefits Of An Ultrasound?

    Taking an ultrasound test may be quite advantageous, especially for the reasons mentioned below.

    • The test does not involve any form of needles or incisions.

    • There is no exposure to harmful radiation.

    • The test helps you to monitor your unborn baby.

    • An ultrasound scan also captures various images of organs that may be difficult to see through X-rays.

    • They are comparatively more accessible as well as affordable!

    Conclusion

    When going for a test, make sure to wear clothes that are easy to remove as well as wear back. Sometimes, an ultrasound doctor can also access various areas of your body without you taking off any clothing. Apart from that, your doctor might also give you an estimated fetal weight chart for your reference. Thus, this way, you will be able to keep a better track of your baby’s growth.

    An ultrasound test may last anywhere between half an hour to 60 minutes. You may find it a bit uncomfortable since you are conscious during the test. Often, your doctor will inform you about what they can see during a sonogram. You might have to wait for the entire procedure to end in order to discuss the result with your gynecologist.

    Meta Description

    If you wish to learn more about fetal growth, then a sonogram might be helpful. Find out more about what this test can offer today!

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    Verified Article by

    Dr. Vani Puri

    Obstetrician- Gynecologist, Infertility Specialist - MBBS| DGO, DNB
    Written by

    parul_sachdeva

    parul_sachdeva

    Read from 5000+ Articles, topics, verified by MYLO.

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