I had two FET cycles and both were done with clomid. I don't O by myself very often because of PCOS so I would start the clomid and get to the perfect time where my lining was perfect and due to O and the embryos were transferred. It was a while ago now but I think I used progesterone pressaries after the transfer too. I fell on my second FET with my last two embryos!! Good luck. Hope your little snow bub likes its new home when it is implanted.