I did the exact same thing-
femara/HCG Shot/
IUI. The only difference was I received the shot only 24 hours before my IUI-not 2 days. Anyway, the first time I did get pregnant, but it ended up being a chemical. The 2nd & 3rd times were not successful, but the 4th one was. I now have a beautiful 3 month old son, who is the result of femara/HCG/4th IUI. Good luck!!