Thanks juniper, both of our FET's so far have been single blasties but I don't know I am kind of leaning towards having two transferred since we haven't tried that yet and this will be our fifth try.

Myturn was this your first double transfer?
My second double transfer - both times it was a last minute decision, because the 2nd embryo didn't look 'good' enough to be suitable for freezing.... So. We transferred both. My naturopath thinks that having the double transfer is almost like the 2nd embryo helps the first one along - so you probably only get 1 but it is more nurtured - which kind if feels nice (but could also be a load of crock... Naturopathy doesn't feel very scientific.... But I still keep going. Lol.)