yesterday i was alone with my boyfriend and we started kissing each other. we still feel we are not still ready for sex ,so we are waiting some more time. however, at one point during our kissing and cuddling,he was lying on me and i felt his penis pushing my vagina. it was for a very short time,may be just one minute or even less. we had our clothes on us. i just wanna ask, that if he had some secretion at that time,can i get pregnant ?