suzy,

if you're worried about not making it to transfer, it is well worth you calling your clinic and asking that you are kept in the loop re the progress of your embryos. If by Day 3, you don't have as many as you'd be comfortable with going to blast, see if you will be able to opt to have the best embryos transferred at that stage, perhaps with assisted hatching.

This way you get to transfer at least, and if they're going to make it, they'll just as likely make it inside your tum than in a petri dish. Plus the stress of worrying about whethr you're going to lose them all will be taken away.

Just a thought.

love
sushee