Hi.me and my 2nd were fooling around. But there was no penetration.he didn't ejaculate directly in side me but it was near my area.I don't feel nauseous or bloated but I think I feel a knot over my vagina.I haven't had a period yet but I'm not on the pill so my periods are kind of irregular.I'm freaking out honestly should I be worried.what should I do.please help