I'm sorry your having a tough time right now. I will say that clots can be a normal part of AF. If you have not had a BFP, then you are probably having an "off" period. If you have had a BFP, I would contact your Dr. Office.
If you are really feeling worried about your AF, record what is going on, and talk to your DR. about it.
Changes in AF can be really scary, and I've been there before.

I hope everything turns out ok, and that you get your BFP very soon.