If a women id sexually active and she is fertile, it means she can now able to give birth to a child. But the question arise here is, '' Do she wants to become pregnant now?? NO!!! Here comes the role of contraceptives.
Hormonal method of birth control consists of 2 different hormones called Estrogen and Progesterone or some only progesterone hormone is enough to avoid unplanned pregnancy. They are safe and reliable way to avoid pregnancy for most of women. There are many ways to deliver hormones in the body such as Pills taken by mouth, skin patch, injections, implant that is worn under the skin, rings and intrauterine devices. These hormone contraceptives works by releasing estrogen and progestin in the body. They prevent birth control by inhibiting ovulation i.e. releasing of an egg from the ovary. They also cause other changes in the body that help to prevent unplanned pregnancy such as mucus in the cervix thickness makes it harder for sperm to enter in the uterus. The lining of the uterus make it less active so that the fertilized egg cannot attach to it and finally egg won't fuse with sperm.
There are various hormones contraceptives such as Mircette, Yasmin, Dronis, Loette, Familon, Ovral-L, Ovral-G, Plan B and Dianette are some of the birth control contraceptives that are used successfully to avoid unplanned pregnancy.