Could I be preggo?

Okay so me and my bf were just playing around bein cute and shit but then one thing leads to another and his dick is out and it's hovering over my vag, he never inserted it in but sorta lost balance and it sorta hit my vag he didn't have any pre cum his dick looked dry but I'm scared cuz what if??? My period starts in 2 days and I'm just worried af could I get pregnant ?? I ain't want no bbys yo I'm 15 man :(