Ok so I seriously doubt it cause I do know how sex works ,BUT I also know the only was to not get pregnant is to not have sex ,but here’s some background then my question. Me an me SO where doing stuff an he ejaculated but he didn’t ejaculate inside of me then a month later I got my period but now roughly 1 week after my period I’m getting really nauseated an get this ball (metaphorically) in my stomach an I know that it could very possibly be anxiety because I’m starting in a new school where I know nobody with very challenging classes but is there any chance it’s something else ? Thank you .