Ordinarily birth control pills do not "put off" or eliminate the menstrual period. Some women using depo provera (injections) do not have their menstrual periods while on that medication.
Birth Control pills, ring, patch, DepoProvera and the IUD are not barriers.
After the last shot of Depo Provera, it can take over 6 months for the drug to leave the body.But you should start another form of birth control after 6-12 weeks after your last shot.
Birth control pills will help regulate the menstrual cycle.
Birth control pills, Mirena (IUD), NuvaRing, DepoProvera, Implanon and the patch are all hormonal methods of birth control sold in the US. There is another injection available in some other countries, as well.
Several hormones are involved in the female menstrual cycle, the ovaries produces oestrogen which causes changes at puberty and helps control the menstrual cycle, and stimulates production of LH.
The menstrual cycle is the reproductive cycle, unless a woman is pregnant or on hormonal birth control then during her reproductive years she is always in her menstrual cycle. A woman can have sex at any point in her menstrual cycle as long as she uses birth control.
The average menstrual cycle length is 28 days - but everyone is different. As a note while on birth control pills you don't have a menstrual cycle, the pill works by suppressing your menstrual cycles so you no longer ovulate.
There is no estrogen in Depo Provera. It contains only progestin. The 3-month shot contains 150 mg of depot-medroxyprogesterone.
The menstrual cycle is under the control of the endocrine system (hormonal system).