So about 3 weeks ago, my ex and I hooked up MUTIPLE times but it's been nothing since then. I was stupid, didn't use protection but he pulled out. About a week and a half ago, I was supposed to start my period but it was really light and only 4 days long. Which is weird because I normally have HEAVY and 7 day long periods. I've been feeling weird lately but I don't want to think into it too much and stress. I highly doubt I'm pregnant but I want to know what y'all think or if this has happened to anyone else.