- they prevent ovulation.
- they make it more difficult for sperm cells to enter the uterus and reach the egg cell.
The hormones also make sure that an egg cell cannot be implanted:
Methods inserted in the uterus by a doctor
Natural family planning
Natural family planning means that no methods of contraception are used. There are various methods of natural family planning:
- Not having sexual intercourse.
- Not having sexual intercourse when a woman is in her fertile period.
- Withdrawing the penis before the man ejaculates.
These methods are difficult to use correctly. This means that they are less reliable.
Sterilisation is permanent contraception. A doctor carries out a small operation on a man or a woman. Sterilisation prevents sperm cells from reaching the egg cell.
Abortion is not a method of contraception. You have an abortion when you are already pregnant and choose to terminate your pregnancy.