Maybe. At our clinic, we have seen better success rates with a frozen embryo transfer, as opposed to a fresh transfer, because you do not want to put embryos back in a physiologically overstimulated cycle that you got them from. We are seeing up to a 30% higher pregnancy rate in fet over fresh transfers. Hope this helps. Good luck.
Some. Procedurally it's no different, other than the hormone-replacement leading up to fet. Experts may disagree on whether the number of embryos transferred should differ. We treat fet exactly like fresh if the embryos were frozen by vitrification; if frozen with the old method, we consider more embryos for transfer. We find vitrified/thawed embryos perform just as well as fresh of similar quality.