Today is my last day on being the depo-provera shot for three months, how long will it take until it wears off? i want to get pregnant soon

3 months to 2 years: as there is variability depending on each individual patient. I would not recommend being pregnant at 16. At least finish your high school education or consider a vocational/technical school to give your future child a life with financial stability to be able to adequately provide for his or her needs. The average cost to raise a child from birth to age 18 is $241,080.