So I have a very irregular period. I believe I started on the 29th of last month and ended on the 3rd. I had unprotected sex on the 8th. I usually start my period with spotting about one week before my real period comes and I spot the entire time. I have no idea when I usually ovulate. But I have been feeling a little weird lately. I have been so gassy I sometimes can't hold it in. I also have been having small cramps on and off through out the day for the past 4 days or so. I am also a very calm person but the last few days i have been short, frustrated and upset over nothing. I also have started getting zits which I NEVER get. I feel like my boobs have gotten swollen and don't fit in my bra. Oh and am constipated. Am I just having pms symptoms Way early or does it sound like I could be pregnant?