I ordered my medications for FET transfer from a pharmacy in the Czech Republic Three packs of estrogen pills cost 37,50 Euros. I think that translates to around 50 U.S. dollars. If I had bought them in the U.S.A., it would have cost more. (I did not order BC pills or progesterone this time, because I already had them from the last time).
If you order it registered post without insurance, it does not have to be checked when it enters the U.S.A. and shipping time is about 10-14 working days.
If you order it registered post with insurance, it does have to be opened and checked when it reaches the U.S.A. (and its kind of a hassle, as I've done it that way before).