So I've been extremely bloated for the past two weeks and yesterday I had horrible cramps in my stomach, lower back, and uterus, my periods have been irregular the past few months but about 3-4 weeks ago I had sex and it was unprotected, I took a test and they were negative but i also took them like the second week after. I also has unprotected sex on my ovulation day, I'm supposed to start my period tomorrow and I've had light spotting but that's it. My eating habits are changing and I don't find alot of food appealing, I'm extremely tired all the time and I've been feeling stressed alot. I'm just wondering if I could be pregnant or I'm just experiencing a harsh period.