Okay maybe this is stupid but I'm scared my SO and I have been having  protected sex with condom without condom and the pull out method for about 4 days my period ended a couple days ago like on the 27th and lately I've just been feeling weird I feel like I've gotten bigger and I could swear there's something moving inside of me but it might be gas because I've been full of gas lately  could I be pregnant? I've been looking at symptoms online and I have none of them my belly just seems bigger to me