Purple_monkfish

Ok, this struck me last night.. and it's an odd question I know.

I've noticed that a large proportion of the twins on these and indeed other message boards are boy/girl twins. Now, is this just coincidence or are they more common than single sex fraternals? I'm a nosy girl aint I? heh.

Just wanted to know if anyone had anything to share on this, any thoughts, theories etc..

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uwalcott

I don't know, but that's a good question. I hope somebody answers it.
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Suzi and Lamar
PCOS and MF
TTC baby #1 since 2002
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Elisa Mari Walcott born 11-14-2005
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Surprise BFP June 2007!
M/C angel baby Emmanuella 8-15-2007
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TTC #2 since 9-2007
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Baby girl! 9/23/2008
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Melissa0909

I think its just luck of the draw. The same as it is for a singleton. lol

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Melissa

DD ZOEY 8/07
4 Lbs 6 oz - 17 inches 31 weeks
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peekj

I am reading a book about twins. It says that 2/3 will be fraternal and 1/3 identical. Of the fraternal twins 50% are boy/girl, 25% girl/girl and 25% boy/boy.

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IVF #1 8/05 BFP Twins - incompetent cervix, rescue cerclage, bedrest; delivered Landon 20w6d; delivered Garrett 21w4d
IVF #2 4/06 BFP -preventative cerclage; 12/29/06 Jessica arrived
FET 2/28/08 BFN
IVF #3 5/08 BFP - Twins

doxie mom

You're more likely to release multiple eggs with PCOS and fertility treatments. Two different eggs means they aren't identical.

Identical twins means one fertilized egg split in two early on, and we're no more likely to have that happen than those not doing treatment.

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Andrea
TTC #1 since 12/07
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terilynn112

I have same sex fraternals. My twins are boys. Michael has hemophilia a genetic flaw I carry, and Matthew does not. Which definitely makes them fraternals.

There are a few more sets of boy/boy and girl/girl fraternals on this board.

Teri

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Teri (35) & ds brandon 10 yr & twins Michael and Matthew born 2-22-06
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Angels :march + July 12, 2002
Chronic back pain, RSD, reflux, diabetes II, endometriosis, pcos Weight loss surgery-lap band September 16, 2008

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