It appears you have not yet Signed Up with our community. To Sign Up for free, please click here....

Pregnancy Message Board
Post New Thread   Closed Thread
LinkBack Thread Tools
Old 05-20-2006, 03:12 AM   #1
Join Date: Feb 2005
Posts: 1,502
KeltoKel HB User
Question about twins

Hi. Does anyone know how twins run in the family? I assume they run on the woman's side.

I found out that my great grandfather (on my MOM's side) was a twin and that there were also triplets in his family. This was many years ago since my own mother is in her 50's.

I am curious as to how this would affect me. I am 13 weeks and get to hear the heart beat on Monday and keep thinking, "what if there are two babies in there....would they know...? Especially since I won't get an ultrasound for another 8 weeks or so.

Sponsors Lightbulb
Old 05-20-2006, 08:43 AM   #2
Senior Veteran
Join Date: Aug 2005
Location: Panama City Beach, Florida
Posts: 1,698
xinerevelle HB User
Re: Question about twins

Increased odds of twins if...

"You, your mother, or her mother's mother is a fraternal twin. These women may carry a gene for hyperovulation, which means they release more than one egg during an ovulation cycle, increasing their ability to conceive fraternal twins. The chances may be high as 1 in 17 if the mother is a fraternal twin herself. " (

Otherwise, the info didn't say anything about relations further back that were twins.

Sponsors Lightbulb
Old 05-22-2006, 06:00 AM   #3
Join Date: May 2004
Posts: 458
bxr35 HB User
Re: Question about twins

Fraternal twins run in families; identical twins don't. The current theory for how the "twin gene" works is that it encourages multiple ovulation -- both ovaries ovulating at the same time -- so that multiple fertilization is more common. Of course, multiple ovulation can happen even without the gene.

It is passed through both sides of the family -- while the boys themselves won't be more likely to have twins, their daughters will, because they can pass the gene on. So yes, if your great-grandfather's family had the twin gene, it could have passed through to you, whether he was on your mother's or on your father's side. Given the small sizes of American families, it could well not have manifested itself in several generations. On the other hand, there might have been other reasons your great-great-grandmother ovulated multiple times, or that particular gene might not have been passed to your great-grandfather, or even if he had it it might not have passed those next two generations to you. So you never know.

Usually with twins the doctor does hear two heartbeats at around the stage you are at now. However, often enough he does not, and it is a surprise at the ultrasound. And in rarer cases, the ultrasound also fails to pick up the second baby, usually because it's hiding behind the first, and the surprise comes later on, either at birth, or earlier when they notice that your uterus is growing too fast and check again.

Good luck!

Closed Thread

Similar Threads
Thread Thread Starter Board Replies Last Post
Quick Question QueenoftheOcean Infertility 7 07-14-2009 09:05 AM
eva77 I have a question for you! Nina1978 Pregnancy 12 10-28-2008 09:25 PM
Question about HCG levels country2001gal Pregnancy 7 08-29-2007 11:07 AM
Question on twins? Unsure_88 Pregnancy 4 10-20-2006 08:58 AM
male factor and IUI Question Miss Sully Infertility 17 08-10-2006 12:40 PM

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Sign Up Today!

Ask our community of thousands of members your health questions, and learn from others experiences. Join the conversation!

I want my free account

All times are GMT -7. The time now is 10:00 AM.

Site owned and operated by HealthBoards.comô
Terms of Use © 1998-2015 HealthBoards.comô All rights reserved.
Do not copy or redistribute in any form!