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What is the earliest you have heard of someone finding out the sex of their baby?

My friend found out at 14 weeks with her son.


Asked by mistical_me at 9:39 PM on Nov. 30, 2010 in Pregnancy

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Answers (7)
  • A fetus develops the same, boy or girl, in terms of external structure until 15-16 weeks when either testosterone or estrogen start producing the baby's endocrine system.

    Up until this time, one identical genital has been present. It looks like a penis almost, for both. After about 15-16 weeks, the small bump either forms a penis or a clitoris, and a scrotum forms at about 19 weeks, so anything before that is really only lucky guesses.

    My friend had a 4D ultrasound at 14 weeks to rule out a congenital deformity, the doctor told her with a 100% certainty it was a boy due to the image. 6 weeks later at a routine ultrasound, it was DEFINITELY a girl.

    Really, anything before 16 weeks is impossible with an amnio.

    Answer by gabrielle_x at 3:51 AM on Dec. 1, 2010

  • you can find out very early if you have to get an amnio done.

    Answer by princessbeth79 at 9:41 PM on Nov. 30, 2010

  • Earliest I've heard is 16 or17 weeks

    Answer by sweetpea1217 at 9:41 PM on Nov. 30, 2010

  • I think I found out at 13 weeks... The doc was 90% sure it was a boy, and by the next ultrasound at 19 weeks, he was 100% sure. And he was right!

    Answer by CarriePM at 10:53 PM on Nov. 30, 2010

  • earliest i found out was 18 weeks

    Answer by cassie_m at 11:07 PM on Nov. 30, 2010

  • I have a friend who found out at 12 weeks, but she works in a hospital and they looked for a long time!

    Answer by Anon344 at 1:01 AM on Dec. 1, 2010

  • idk my daughter would always cross her legs so we had to go to one of those 3d-4d to check it out and i was 5 mos..

    Answer by nicoleNjeanna at 1:19 AM on Dec. 1, 2010

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