Most birth control
pills contain amounts of both estrogen and progesterone, two female hormones. These hormones work to suppress the normal ovarian hormone cycle that leads to ovulation, preventing pregnancy. Birth control pills are very well tolerated, although there are some common side effects, such as breast tenderness, fluid retention, and nausea. These side effects usually go away if the pill is continued for a few weeks as the body gets used to taking them. Some women do report increased appetite and weight gain on the pill but, at the same time, the same number of women, approximately 20% report decreased appetite and weight loss
. This side effect, too, will tend to smooth out over the first few weeks of taking the pill. As always the diagnosis and the management of your particular concerns will require a physical examination by your personal physician. Setting up an office visit with your primary care doctor
or your OB / GYN doctor if you still have questions my be advised.