According to the book Contraceptive Technology (a commonly used reference for all types of contraception), Depo-Provera can delay fertility for six months to one year after it is discontinued. This doesn't mean that it will take you six months to one year to get pregnant, but rather that it could possibly take that long. Some women become pregnant after only a few months, so it's really difficult to predict. You should know, however, that there's nothing wrong with you if it takes up to one year. If you have been trying for a year with no success, however, it is time to see your health care provider. Also, if you are planning to become pregnant, be sure that you are taking 0.4 mg of folic acid (a B vitamin) every single day for months before you conceive, as this can prevent many birth defects. This amount of folic acid is contained in many multivitamins. Read the label of the vitamin bottle or check with your pharmacist.