last Sunday me and my boyfriend attempted to have sex,i was nervous and he couldn't get it in me,i guess because i was really nervous,and not relaxed,he attempted to get it in for like a minute,and he stopped because it was too painful for me,could he have pre cummed while attempting to get it in and i could be pregnant?I'm worried,i kinda had cramps a few minutes after this,but I'm assuming it was because i was nervous?i don't have cramps everyday,i did today tho..