I took my last depo shot on november 16th and i haven't had a period yet. what can i do to get pregnant?

Depo lasts 3+months,: So you are on the early end of resuming menses, and some studies suggest it may be from 2-3 moths to as long as 18 months before resuming ovulation, which is required to conceive, in addition to having hormone related menses. Take prenatal vitamins, eat a nutritious diet and get regular exercise. If no action by 6 months, consult with Gyn who may recommend clomiphine if TTC is a priority.

Depo period restart: When depo provera is used for extended periods of time, menstrual flow takes between 3 to 6 months to resume. Ovulation can occur BEFORE a menstrual period is actually seen so that pregnancy may occur. Thus, if you are sexually active without ancillary contraception you need to keep checking a pregnancy test until a actual flow returns.