I have a regular 30-35 day cycle...me and my boyfriend were dry humping around the 13th day both clothed(he had his boxers n i had my underwear and a skirt made up of a very thin material) we dry humped for a lot of time and i noticed his boxers were wet and some of the wetness even touched my thigh a few times...he ejaculated 2-3 times and im concerned this must have gotten through my clothing ... Plus my panties were slightly wet due to vaginal secretions which might facilitate sperm motility...is there a chance i may get pregnant? Should i take oral contraceptives? 72 hrs are not over yet please help fast