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Started the depo shot on June 19. Had monthly bleeding, such as spotting. My last spotting was on Aug 17 until Sept 2. Then on Sept 3, I began taking Alesse, the birth control pill. I had unprotected s_x on Aug 28, Sept 3, and Sept 11. For a few days now, Ive been nauseous and have had heartburn, aside from being a little extra tired. I know those are pg symptoms that occur later on, but what are the chances of pregnancy, especially since about Sept 12 I haven't been takin the pill ontime? I've been off between 1 to 3 hours due to the oversleeping. Ladies, any suggestions would be helpful. Thank you.