My fertility doctor has me on progesterone during my luteal phase. My last day of taking them was yesterday and took a HPT this morning and it came out a BFN. During 1 bathroom visit about 5pm today I had discharged what looked to be a start of AF. I haven't seen anything since. I'm supposed to call with CD 1 but I'm not sure what was happening earlier. I'm worried it is CD1 and i'll miss my treatment cycle or that it's not AF and I'll start my next treatment cycle to early. Any help?