Birth control is one of the most effective ways to prevent an unwanted pregnancy and sexually transmitted infections (STIs). There are a variety of birth control methods available including condoms, birth control pills, birth control shots, diaphragms, and an intrauterine device (IUD). It’s important to consider your future family plans before selecting a birth control method. Learn more about birth control to discover which method is best for you:

1. Condoms
Condoms can be used for birth control by itself or combined with other birth control methods. The effective rate is 98 percent, which is slightly lower compared to other birth control methods. Condoms must be used correctly to prevent pregnancy. It’s common for condoms to fall off or break during sexual intercourse. Condoms are also effective for preventing STIs.

2. The birth control pill
The birth control pill is one of the most popular ways to prevent pregnancy. Women take a pill once a day for protection against pregnancy. The pill is inexpensive compared to other birth control products, but it does require a prescription from a doctor. Women can become pregnant quickly if they quit taking pills. The pill is most effective when taken at the same time every day. The effectiveness of the pill decreases when doses are missed or skipped. Side effects of the pill include weight gain, nausea, irritability and irregular bleeding.

3. The birth control shot
Depo-Provera is a birth control method given as a shot. The shot is over 99 percent effective. Many women don’t experience a period after getting the birth control shot. The shot only needs to be administered every three months. Women must receive the shot within a certain window for the shot to work properly. The two most common side effects of the shot are weight gain and mood changes.

4. IUD
An IUD is one of the most convenient birth control methods used by women. This birth control method is a small device that fits inside your uterus. An IUD can be removed at any time if you change your mind about childbirth. Some IUDs can last up to 12 years. Side effects associated with an IUD include cramps and irregular periods.

5. Diaphragm
A diaphragm is a shallow soft silicone cup shaped like a small saucer. It’s used when bent in half and inserted inside the vagina to cover your cervix, and prevent sperm from reaching the egg for fertilization. The diaphragm is considered a barrier method, meaning it blocks pregnancy. Diaphragms are often used along with spermicide, which is a foam that’s also inserted into the vagina. Spermicide contains chemicals that stop sperm from moving so they can’t reach an egg, while the diaphragm blocks their passing the cervix.