According to glow, my last "fertile day" was exactly a week ago on 3/28. I also had unprotected sex that day. Fast forward to today: I've been feeling nauseous, I'm exhausted (but I'll chalk that up to poor sleep last night), but my belly (around my belly button/a little lower) has been aching all afternoon and started cramping a bit this evening. I'm not due for AF until the 11th but I've got the same belly feeling I do around the day I start. Last month my cycle was EXTREMELY unsual with light bleeding one day, 4 days of nothing and then about 5 days of light bleeding (not what I'm normally used to though, and nowhere near as painful). I tested last month when AF presented late but got bfn's. I've been checking cp and i think it points to ovulation like tomorrow (medium, soft and open atm. Been high hard and closed the last few days..to the best of my knowledge). Anybody have any insight as to why I'm feeling like this now? Is it just ovulation?