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.
However, some women become pregnant as soon as three to four months after stopping Depo-Prevera. The average time it takes to get pregnant after Depo-Provera is nine months, but it can take some women up to two years.