Ok so my periods usually last about 5-6 days and are pretty heavy. My boyfriend an I had unprotected sex 2 weeks after my period had started which I understand is around when I should be ovulating. We had sex 2 days in a row. A couple days to a week later I started getting minor cramps like mestrual cramps just NOT as bad as well as wanting to eat like ALL the time. I've also been VERY gassy lol and peeing a little more than normal. However about 10 days after we had sex and about 5 or 6 days before I was due for my period I started spotting but then it turned into a pretty heavy flow but only last 4 days instead of 5-6 and turned into some light brown spotting when I wiped. Normally my periods start very light and don't get heavier tntil about the 2nd or 3rd day in. I don't notice cramping tntil about the 2nd or 3rd day as well. This time my cramps kicked in BAD the 1st day just like a menstrual cycle and Started heavy and got lighter towards the end. Basically it was backwards from normal. I'm NEVER that early. And I NEVER cramp before my period. Is pregnancy even possible? I'm so confused :/

It's doubtful that you're pregnant, but not impossible. Some women do have bleeding during pregnancy.

The fact is, most of us experience off periods in our life. Your period being shorter than normal by a day isn't really that concerning. The other symptoms you described, eating more, peeing more, gassy, can also be PMS symptoms. So you see the problem.

The only way to confirm pregnancy is a pregnancy test. If you really feel that you could be pregnant than try a home pregnancy test using first morning urine.

I wish we could tell you for sure, but we really can't. Judging by what you have said I would say that you're not pregnant, but is it possible? Anything is possible.

Good luck.