Hey, I Got On The Depo Shot In February. I

Hey, I got on the Depo shot in February. I started bleeding at the end of February and have been bleeding since then. Well it's May now & April was my last month of birth control. I haven't been back to take another shot. I was wondering how can I stop the bleeding, if I can't when will it stop. Also, how long would it take for me to be able to make a baby ?