Question

Oral-contraceptives prevent

• A. Fertilization
• B. Ovulation
• C. Implantation
• D. All of the above

Answer 1

The correct option is D All of the above

Main action of oral contraceptive pill is inhibition of ovulation by supressing the release of FSH and LH from anterior pituitary.

There are other actions also, like, progesterone thickens the cervical mucus and makes sperm penetration difficult, it also have effect on uterine lining and makes implantation difficult. Estrogen increases the speed of ovum transport and decreases fertilization time. Thus, the correct answer is option D.