You haven't mentioned the duration for which you have taken the birth control pills or what kind of birth control pills you have used. Birth control pills have synthetic hormones, which switch off the ovaries in your body to stop the egg production. The body needs sufficient time to recover from this so that it can regulate the hormones and get back to its natural functioning. Usually it takes about a week to a month for your periods to start, depending on the type of birth control pill you have been taking. I would suggest that you see a gynecologist and inform her about the kind of pills you have taken.
The lining of the uterus gets thick with blood to prepare for pregnancy. And when the pregnancy does not happen the uterus sheds the lining, which causes the monthly bleeding or periods. A woman generally loses about two to four tablespoons of blood each month but in some cases it is more and that may cause anemia due to excessive blood loss. Periods usually start at the age of 13 years and go on till about the age of fifty years. Generally a woman gets her periods every 28 days but in some cases it might also be more - up to about every 34 days. A healthy woman gets her periods regularly around the same time every month usually within five days of the last time. Those with regular periods can have thirteen cycles each year and about 450 periods in their entire lifetime. The menstrual bleeding is controlled by the female hormones estrogen and progesterone. Estrogen causes the lining of the uterus to get thick and full of blood vessels while progesterone matures the cells that line the inside of the uterus and cause them to fill with chemicals which will be needed for pregnancy. When there is no pregnancy these hormone levels drop and the cell lining inside the uterus break open and release prostaglandin chemicals and this causes bleeding or periods.
Birth control pills usually contain the synthetic estrogen and progesterone hormones that stop the production of the ovaries so no egg is formed. This also causes the mucus of the cervix to thicken so that the sperm does not enter the uterus. The hormone progestin in the birth control pill shuts off the ovaries so there is no period for a while. But when these levels drop the bleeding starts and you get your periods.
You can try the following home remedy: Boil a large cup of water and add a teaspoon each of parsley and chamomile and steep for 10 minutes. Drink this to increase the flow, reduce cramps and to regulate periods.
answered by G R