I agree with Jackie's Hope, just because you transfer two embies doesn't mean they will both take, last fall we were lucky enough to have two female embryo's to transfer, we were thrilled and hoped that they would both make it, but if not then at least one would. Neither stuck, 2nd cycle was cxld due to no response to meds. Third cycle out of 7 eggs retrieved, only 1 made it and she was our girl, but sadly she never grew. I just found out last Monday, no heartbeat. So even if you are fortunate enough to have two female embryo's left, you may get nothing. I go with two over one anyday, just to up my odds. It really is alot harder than it seems.