Failed IVF attempts

Dear Professor Winston,

I’ve had 2 failed IVF attempts. Both resulted in implantation failure, with no reason given. The first cycle my embryo went into Asmotic shock while in the embryo scope. Therefore, they had to move to new one. The embryologist cannot answer why this happened. The medium was tested with research eggs and it didn’t do the same. I’m ready to start my third round in the next couple of months. It’s my last attempt I can afford.

Any help and advice.