B2B - I just had my first experience with IUI and AF came and I had the exact same thing - i never used to get heavy flow or any pains nor did i have AF for long and after the hormones I have this time had all of it - long, heavy and a lot of pain. It sucks when you get a BFN after doing everything but I am positive one day soon we will get our BFP!
Take care

to everyone