Ok I need a reality check... ugh

I'm currently 10 days late. I have PCOS and with my first child I didn't get a positive test till I was 8 weeks that's after I went to the Dr and everything was confirmed by ultra sound. but I took one this morning and BFN. I been more tired and craving crazy things at weird times of the day but I've been doing that the last few months for PMS so Idk. and then I've been so horny and that's really unlike me... if AF shows up. Oh and I have headaches and heartburn like crazy all the time I really want this to be put month... u think I could be prego please honest opinion.