Mirena is an FDA-approved intrauterine device (IUD) that prevents pregnancy for up to five years after insertion. A t-shaped plastic implant, Mirena works by thinning the lining of the uterus and also releasing the hormone progestin, which thickens the mucous lining of the cervix, preventing sperm from entering. Mirena also suppresses ovulation. Mirena is appropriate for use by all premenopausal women, including teenagers.
Paragard is a non-hormonal intrauterine device (IUD) that prevents pregnancy for up to 10 years after insertion. The t-shaped plastic implant is covered in copper wire, which slowly releases copper into the uterus. Copper produces an inflammatory effect on the uterus that is toxic to sperm. Paragard is appropriate for use by all premenopausal women, including teenagers.
Intrauterine devices (IUDs) are a form of long-term birth control. The IUD is typically a T-shaped implant that is placed by your doctor into your uterus. The implants use either hormones or copper to disable sperm and prevent fertilization of an ovum. IUDs that release progestin also thicken cervical mucosa, preventing sperm from entering the uterus. IUDs are considered a safe, effective and easily-reversible form of long-term birth control.
Nexplanon is a hormonal birth control implant that prevents pregnancy for up to three years. A tiny plastic rod implanted in the arm releases a hormone called etonogestrel into your body slowly over a three-year period. Etonogestrel inhibits ovulation, thickens vaginal fluid and causes changes to the lining of the uterus to prevent fertilization. Nexplanon may not work well for you if you are very overweight or if you are taking certain medications.
The NuvaRing is a form of hormonal birth control. It is a thin plastic ring about the size of a silver dollar that is inserted into the vagina, similar to the way you insert a tampon. It releases estrogen and progestin over a three-week period, after which you remove the ring, wait seven days (this is when you will have your period) and then insert a new one. The NuvaRing should be left in place during sexual intercourse. Used properly the NuvaRing is about 98 to 99 percent effective. The NuvaRing does not protect against sexually-transmitted diseases.
A diaphragm is a dome-shaped device that fits over the cervix to prevent sperm from entering the uterus. In order for a diaphragm to be an effective form of birth control, it must be fitted properly. Your doctor will measure your vagina to find the appropriate fit for you. When you will have sexual intercouse, apply spermicidal jelly to your diaphragm and insert it into your vagina. Your doctor will walk you through the process of properly inserting and removing your diaphragm. Your diaphragm should be replaced every 12 to 24 months, and each year you should have it checked to see if it still fits properly. You may also need to be fitted for a new diaphragm if you give birth, have pelvic pelvic surgery or gain or lose more than 15 pounds. Diaphragms are about 86 to 94 percent effective. Diaphragms do not protect against sexually-transmitted diseases.