It’s rare, but some women do gain a little bit of weight when they start taking birth control pills. It’s often a temporary side effect that’s due to fluid retention, not extra fat.
A review of 44 studies showed no evidence that birth control pills caused weight gain in most women. And, as with other possible side effects of the pill, any weight gain is generally minimal and goes away within 2 to 3 months.
If you happen to be one of those few women who put on pounds, talk to your doctor. She may...
Change in the menstrual cycle is the most common side effect. You may have irregular bleeding or spotting. After a year of use, about 50% of women will stop getting their periods. Their periods usually return when they no longer get the shots.
Long-term use of Depo-Provera may lead to loss of bone mineral density, which makes osteoporosis more likely. This risk is greater if you've taken the shot for longer than 2 years, especially if osteoporosis runs in your family, you drink a lot, you smoke, or you have other risk factors for the condition.
Can I Get Pregnant After I Stop Using Depo-Provera?
You can become pregnant as soon as 3 to 4 months after your last shot. But it takes some women up to a year or 2 to conceive after they stop using this type of birth control. This time frame seems unrelated to how long you used the shot.
What Are the Advantages of Depo-Provera?
You don't have to remember to take it every day or use it before sex.
It provides long-term protection as long as you get the shot every 3 months.