Generally, it takes between seven and 10 hours for a dog to digest food, but the many variables mean that only your vet can tell you how long it should be taking.
But how many days after Provera will your period start? When using Provera for amenorrhea (absence of menstrual periods) or abnormal vaginal bleeding, the medication is taken for 5 to 10 days. Menstrual-like vaginal bleeding usually occurs three to seven days after treatment ends.
Depo-Provera and pregnancy. Once you stop using Depo-Provera, it can take you an average of 9 to 10 months after the last shot to get pregnant. After 2 years, pregnancy rates are the same in women who used Depo-Provera as is in women who used the Pill or an IUD.