[Moxie.]

If you're talking about your current cycle, there isn't really a way to stop it. Like Dez said, drinking a lot of fluids can lighten the flow, but not stop it completely. However, if you're talking about stopping your period in general, talk to your doctor. I don't think there's a way to stop it completely, but many forms of birth control will delay your period for several months or make it so light that it only lasts for about a day. Just let your doctor know what your concerns are and what kinds of routes you would like to avoid. I'm sure they'll have some suggestions to offer you.