Pregnancy occurs when the sperm fertilises the egg. So the way to prevent pregnancy is to prevent fertilisation. There are many ways to do this.
Rhythm method- This method relies on the menstrual cycle. If you do not have sexual intercourse around day 9 to day 19 of the cycle, you could avoid pregnancy. It is not very effective.
Abstinence, Withdrawal methods - Not having sex is the only sure way to avoid pregnancy. However, human nature does not permit abstinence. Some people try the withdrawal method where the penis is withdrawn just before ejaculation. That way, the semen falls outside the vagina. This method is also not very reliable.
Barrier methods - These methods work by preventing the sperm from being deposited in the vagina. Condoms, and Diaphragms are barrier contraceptives. These methods are highly effective if used correctly.
Hormonal methods - Hormonal pills or injections work by changing the levels of the reproductive hormones in the woman’s body. By doing so, they prevent ovulation, or release of the egg from the ovary.
Implants - Implants like Copper secreting devices or hormone secreting devices are placed in the uterus. These devices prevent the fertilised egg from implanting in the uterus. So even though fertilisation may occur, pregnancy will not proceed.
Surgical methods - Methods like tubectomy and vasectomy remove part of the tubes through which the egg or the sperm pass. This creates a block and they cannot reach the uterus.
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_Duta Doctor is a qualified doctor. However Duta Doctor's advice is generic and can never replace a consultation with your personal physician._
All of these methods have different levels of efficiency. Different methods are better suited for different people. I would advise you to consult your doctor to choose the best method for you.
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