First FET transfer

My first FET transfer is next week and I am in a whirlwind of emotions. I’m 29 and my husband is 30. We’ve had 2 failed IUIs. Did anyone have a successful first transfer? I don’t want to get my hopes up like I did with IUI but I don’t want to be pessimistic either.

Also, did anyone transfer 1 embryo but ended up with a twin pregnancy? My doctor was pretty adamant about transferring one.