birth control
"I have been on Depo-Provera for 11 or 12 years and love it. I started out with very few periods and all of them were very light.  Now I normally will lightly spot or clot before my next shot is due. Now I never have any periods so it's been great. The only problem I've had is just recently, for my last shot I went to a different doctor and they gave me the generic version which caused me to bleed very heavily and severe cramping so I know to never use the generic form again."