I'm Scared :( I Was With My Bf On Saturday

I'm scared :( I was with my bf on Saturday night and we had a little fun. Soo it started with kissing and then he took his pants off and then my shirt and then undies he grinded me but it never went in at all we first grinded with underware on and the the next morning he took them off and did it and then fingered me I'm not sure could I be pregnant I'm just worried a lot.