There are two main classes of hormonal contraceptives: combined contraceptives contain both an estrogen and a progestin. Progestogen-only contraceptives contain only progesterone or a synthetic analogue (progestin). There is also a non-hormonal contraceptive called ormeloxifene which acts on the hormonal system to prevent pregnancy. Combined The most popular form of<unk> , the combined oral contraceptive pill is known colloquially as the pill. It is taken once a day, most commonly for 21 days followed by a seven-day break, although other regimens are also used. For women not using ongoing<unk> , COCPs may be taken after intercourse as emergency contraception: this is known as the Yuzpe regimen. COCPs are available in a variety of formulations. The contraceptive patch is applied to the skin and worn continuously. A series of three patches are worn for one week each, and then the user takes a one-week break. NuvaRing is worn inside the vagina. A ring is worn for three weeks. After removal, the user takes a one-week break before inserting a new ring. As with COCPs, other regimens may be used with the contraceptive patch or NuvaRing to provide extended cycle combined<unk> . Some combined injectable contraceptives can be administered as one injection per month. Progestogen-only The progestogen only pill (POP) is taken once per day within the same three-hour window. Several different formulations of POP are marketed. A low-dose formulation is known as the minipill. Unlike COCPs, progestogen-only pills are taken every day with no breaks or placebos. For women not using ongoing<unk> , progestogen-only pills may be taken after intercourse as emergency contraception. There are a number of dedicated products sold for this purpose. Hormonal intrauterine contraceptives are known as intrauterine systems (IUS) or Intrauterine Devices (IUD). An IUS/IUD must be inserted by a health professional. The copper IUD does not contain hormones. While a copper-containing IUD may be used as emergency contraception, the IUS has not been studied for this purpose. Depo Provera is an injection that provides three months of contraceptive protection. Noristerat is another injection; it is given every two months. Contraceptive implants are inserted under the skin of the upper arm, and contain progesterone only. Jadelle (Norplant 2) consists of two rods that release a low dose of hormones. It is effective for five years. Nexplanon has replaced the former Implanon and is also a single rod that releases etonogestrel (similar to the body's natural progesterone). The only difference between Implanon and Nexplanon is Nexplanon is radio opaque and can be detected by x-ray. This is needed for cases of implant migration. It is effective for three years and is usually done in office. It is over 99% effective. It works in 3 ways: 1. Prevents ovulation- usually an egg does not mature 2. thickens cervical mucus so to prevent sperm from reaching the egg 3. If those 2 fail, the last is the progesterone causes the lining of the uterus to be too thin for implantation. Ormeloxifene Ormeloxifene is a selective estrogen receptor modulator (SERM). Marketed as Centchroman, Centron, or Saheli, it is pill that is taken once per week. Ormeloxifene is legally available only in India.
Hormonal contraception
Combined hormonal contraception
Fertility medication
Hormonal therapy 
Bodybuilding supplement
Abortifacient
Sex-hormonal agent
Vas-occlusive contraception