Hello,
Thay say that blasts are usually better, becuase the embryos are more developed at that stage. However, there are a lot of women who have gotten pregnant with 3 or sometimes 2 day embryos. I am on my 2WW right now , we have trasfered four 3 day embies, i will let you know if it worked.
Vlada
On each of my attempts I have had 2 -3 day embryops implanted. I was debating about asking them to do blasts this time, but in the end I decided to let them do their job and I'll do mine. My acupuncturist was surprised that they were not doing blasts as she said they are usually more successful.