Ok me and my girlfriend were fooling around on the 28th of March and she usually has her period around the tenth and we didn't not have any intercourse although I'm sure at one point may penis touched her labia but only for 5 seconds at most however she had given me a ha****b about an hour prior to this and I had went to clean up and used anti bacterial soap on my hands and penis and afterwards we had foreplay so can anyone give me an estimate on how likely a pregnancy is? She is not on any form of birth control thanks.