That is a ridiculous myth, much like the 'you can't get pregnant on the first time' or 'you can't get pregnant if you have sex in water'. All nonsense. You get semen in you then you can get pregnant.
Sperm are resilient little buggers and can survive a whole WEEK inside of a women. If they don't have the protection of a human body, man or woman's, they usually die between a 1/2 hour and four hours.
If you've touched semen or if your boyfriend has touched semen, make sure to give your hands a good wash before either of you touches your vagina. Or, even simpler, to buy a spermicidal hand wash and keep it handy. [ Razhie's advice column | Ask Razhie A Question ]
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