They were both single transfers - I lost one at nearly 9 weeks, which lead to us discovering that I have auto immune problems. They other was a much weaker embryo and I lost pretty much on 4 weeks. Small amount of HCG present in final blood test... that one really wasn't pleasant! To be honest, I have no idea why my blasties took. I just knew inside that the first would, I knew inside that the second wouldn't (was rather surprised to get pregnancy symptoms, was unsurprised to get AF). With the first, I was relaxed, my stress levels were low... was rather different with the second. Stress possibly did have something to do with things, but I do find that I feel more confident with them working because my body is put through less stress in terms of drugs, hormones, blood tests, etc.

For a natural FET, they monitor your cycle and transfer when appropriate. For me, I have to take drugs to induce ovulation (I have PCOS I'm completely anovulatory without assistance), which will occur around days 18-20, and transfer takes place 5-6 days after that. Medicated FET cycles are very different, but I haven't experienced one of them so someone else will have to tell you about them.

Melsta, you've done well! I admire anyone who can go through EPU without a GA! Good luck for tomorrow's fertilisation news!

BW