Last Evening I Meet My Gf I Kept. My Dick

Last evening i meet my gf I kept. My dick on her viginalips and I had a precum. ...is there is a possibility of any pregency...! And that last evening at that time she said me that she is haveing a periods she is 16 yers old .and that time she had a fingering then she had a bleading. ..should I give her the ipill? ?
And I didn't have a inter course also on that time plz reply me fast