Me and my boyfriend were dry humping each other. We were both fully clothed. He had his underwear and pants on. I had my panties and shorts on. He orgasm-ed and came and because he was grinding me at that time, i think some of the ejaculate soak through such that there was a wet spot on my shorts. The wet spot is definitely his and not mine. I am on my period now. It started on saturday. I am on a regular 28 day cycle. . I was wearing shorts, panties and i had a sanitary pad on. What are the odds of me getting pregnant?