Hi Julie-
Welcome to the boards! I agree with the other ladies. 1 seems to be your best bet and also just for your peace of mind since you have twins already and they came a little early. But if you are leaning toward putting back 2, talk it over with your doctor and discuss all of your concerns. I'm sure you will both be able to make the right decision.
And I would be pissed about that failed IVF cycle..I hope you get some money back!

Good luck
Cindy

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Cindy Age 33
DH Rob Age 35
Married 9/19/98
TTC #1 since Nov 2004

3 IUIs with Clomid May-Jul 06

Lap to remove Endo Sept 2006
New doctor and new tests March 2007
2nd lap removed Endo, fixed tube/ovary and cervical stenosis May 2007

IVF #1: BFP on August 27th!!
No h/b on Sept 24th ; D&C Sept 25th
Angel went to heaven @8 weeks

IVF #2 E/R on March 31st; E/T on April 3rd-6 embryos transferred!
Beta #1 April 14th (11dp3dt): 242
Beta #2 April 17th (14dp3dt): 843
Beta #3 April 21st (18dp3dt): 4730
1st U/S April 25th: Showed 3 Yolk Sacs!
2nd U/S May 2nd: Saw + Heard 3 !
1st OB Appt May 14th: 3 Heartbeats still going strong!