MIVF's who have had unmedicated FET's..stats?

[Acacia]

W1, I'm sorry to hear about blasted AF. I hope you're hanging in there

I can also tell you that MIVF's policy is to do 2 day transfers, usually. They only allow embryos to develop to blastocyst when a couple have gone through many cycles without success (I have read information from MIVF that states 10 as the number of unsuccessful cycles), and/or when embryo biopsy is required. Definitely talk to Dr McBain about it though - he can give you more background on why it's MIVF's policy - I can tell you that it's to do with their focus on having less egg collection procedures, which are invasive and stressful for the couple, and focusing more on FETs and having more embryos with which to achieve a similar statistical result of pregnancy versus number of eggs collected in comparison to blastocyst transfers. This is because at day 2, there are more embryos available then at day 5 (blastocyst stage) as many embryos don't make it past a day 3 hurdle point. This means more embryos available for FETs before needing to go back to a fresh "egg collection" cycle. In comes down to their success rate with freezing and thawing the day 2 embryos also, I think.

There is an excellent thread here on BB that discusses all the possibilities and advantages of both 2 day transfers and blastocyst transfers that may be helpful for you.

Hope this is helpful. Hang in there :hugs:

Miss C