Provera and Ovulation Stimulation
When prescribed for women trying to get pregnant, Provera is usually given for 10 days. After that time a woman can expect bleeding from two to 10 days later. "This regimen is often used for women who are trying to conceive, to initiate an artificial period so that the fertility drug Clomid (clomiphene citrate) can be started. Clomid is started on day three, four or five of a menstrual cycle and helps ensure ovulation," says Dr. Hakakha.
Provera does help regulate the menstrual cycle, but it can also interfere with ovulation, says Dr. Hakakha. "Typically Provera is used for short periods of time in specific situations (for example, to bring on a period) and is rarely used continuously by women trying to conceive, as it can prevent ovulation and thin the lining of the uterus, making implantation of an embyro very difficult," Dr. Hakakha continues. Few women take Provera because they're trying to conceive.