Single frozen embryo transfer at 41 ... what are the chances?

[Anonymous]

I have one good quality embryo frozen from when I was 37. My first IVF was successful (after several failed IUIs and major medical complications). For the IVF they transfered 2 embyos, I was pregnant with twins, but lost one of them somewhere around 3 mos. We had a healthy singleton. Eight months later I was pregnant again naturally (and surprised!) and had another healthly singleton. Now I am 41. Does having 2 kids before this increase my chances of conception using a frozen embryo vs someone who has not been able to conceive? Does the fact that the embryo was created with a 37 year old egg make a difference in the chances of success (vs. my 41 year old eggs now)? Thanks.

[Anonymous]

It goes by the age you were when the embryo was made. Other factors would include the quality of the freezing method and the quality of the embryo (is it a blast?). I don't think your subsequent pregnancy effects your stats.

[Anonymous]

The embyro was 8 days old when frozen so was a blastocyst. It was considered to be high quality grade A, so to speak. Are there different methods of freezing? I didn't know.