Ron: thanks! This process is quite different from my clinic. Just before thawing, hb and I said that we will like to go for blastocyst if the embbies are strong. As such, once the thawing starts 2 embbies did not make it. I left with 4 on d2. On d3 morning, clinic called only 2 started to grow and ask me to go down to do the Et within 1 hr. As such will not go to blastocyst stage. When I went down, one of the other 2 embbies which are not growing, started to grow (Thank God!) and I have trasferred 3 embbies.
I didnt know that NUH transfer embbies at d3 and did not wait for blastocyst to transfer at the same cycle; in fact, any blastocyst will be frozen...