Join the Meeting Place for Moms!
Talk to other moms, share advice, and have fun!

(minimum 6 characters)

2 Bumps

can u find out if twins are faternal before they are born

Answer Question

Asked by navah at 1:44 PM on Oct. 15, 2010 in Pregnancy

Level 3 (13 Credits)
Answers (9)
  • By ultrasound yes.

    Answer by Amelia512 at 1:47 PM on Oct. 15, 2010

  • Yes. Fraternal twins will both have their own gestational sac, while identical twins are in the same gestational sac.

    Answer by Anouck at 1:47 PM on Oct. 15, 2010

  • I think identical twins share an amnitotic sac and fraternal twins should each have their own. That should show up on an ultrasound. Not completely sure though!

    Answer by Shanna84 at 1:47 PM on Oct. 15, 2010

  • Of course. Any ultrasound will tell you that. Identical twins come from one egg, so there is one amniotic sack... Fraternal twins come from two eggs - hence, two sacks... Simple as that.

    Answer by SabrinaMBowen at 1:47 PM on Oct. 15, 2010

  • Wow, looks like I'm a slow typer!

    Answer by SabrinaMBowen at 1:47 PM on Oct. 15, 2010

  • i think only if they are the opposite sex. if they are both the same sex i don't think you can tell until they are born. i have twin teenage sisters and they look identical but they're actually fraternal

    Answer by aliishott2 at 1:48 PM on Oct. 15, 2010

  • The above is usually true, but sometimes they can't be sure until they are born. I have twin nieces who are fraternal. They thought they were fraternal using ultrasound, but they weren't absolutely sure until they were born. After the birth, the doctor can determine for sure if they shared a placenta. Occasionally identical twins will have separate sacs, but usually they will be in the same. They can also do DNA tests too.

    Answer by pam19 at 1:51 PM on Oct. 15, 2010

  • If they confirm that it's one boy and one girl you will know they are fraternal. If they are the same sex it may not always be so clear. Depending on when identical twins split they MAY end up in separate sacs, and sometimes the separate sacs of fraternal twins will fuse together and appear to be one sac.

    Answer by TweenAndTwinMom at 2:58 PM on Oct. 15, 2010

  • Yes through an ultrasound -- they check your placenta with an U/S and this will show whether or not they are identical or not.

    Answer by rachealbyrd at 1:35 AM on Oct. 17, 2010

Join CafeMom now to contribute your answer and become part of our community. It's free and takes just a minute.