Maggieme - so sorry to hear that. All 3 of my cycles AF arrived before BT. First one I was on Crinone, 2nd and 3rd not taking anything. AF wasn't early though, she arrived when she was due based on when I ovulated or in the case of stim when I would have ovulated if it wasn't for the injections. After you started this cycle, what cycle day did you trigger? Eg. CD14. And how long are your natural cycles?