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Question
List four ways of preventing pregnancy. State two advantages of using such preventive methods.
Solution
Ways of preventing pregnancy:
(i) Natural methods: In this method, sexual act is avoided from day 10th to 17th of the menstrual cycle since during this period ovulation is expected. Therefore, the chances of fertilization are very high.
(ii) Barrier methods: In this method, the fertilization of ovum and sperm is prevented with the help of barriers. Barriers are available for both males and females. Condoms act as barriers. They are made of a thin rubber, which is used to cover the penis and vagina in males and females respectively.
(iii) Oral contraceptives: In this method, tablets or drugs are taken orally. These contain small doses of hormones which prevent the release of eggs and prevent fertilization.
(iv) Implants and surgical methods: Contraceptive devices such as the loop or Copper-T rods are placed in the uterus to prevent pregnancies. However, they can cause side effects in the uterus.
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