for responding to my query re embryo development stages and the 3 v 5 day transfer. I didn't want to post below because its a few days ago now and you may not see it. I appreciate you taking the time to reply to me. The info you all provided was very helpful and I can see a 3 day transfer, if this turns out to be the case for me, will not be a bad sign. I am going to Czech Republic, the donors are not highly stimulated and so it is not uncommon to have much less embryo's than in the US so a 3 day transfer may make more sense if the numbers are low.