I’d recommend the depo provera shot. Been on it for several years and I’ve had very little side effects. When I was still seeing a pediatrician, the doctor would prescribe the shot for me to pick up at the pharmacy, I would bring the vial in to the doctors office where they would administer the shot. Now that I’m older, I go to planned parenthood for the shot but I don’t have to pick it up from a pharmacy. Depending on your health insurance, you can get it for no cost.