The egg is released (ovulation) from the ovaries every 28 days (approximately).
What is ovary?
- It is a female gland in which eggs are formed and produces female hormones like estrogen and progesterone.
- The ovary releases egg on about 14th day of menstruation ("normal vaginal bleeding that occurs as part of a woman's monthly cycle").
- In an average, the menstruation cycle is 28 days long.
What is ovulation?
- It is a process in which mature egg/ovum is released from the ovary.
- It occurs when the level of luteinizing hormone increases which causes rupture of Graafian follicle to release ovum/mature egg into fallopian tube of the uterus (womb).
- If the egg fuses with male sperm, it will lead to implantation which results in pregnancy. If not, the endometrial lining of uterus is shed off which causes bleeding.
Hence, the correct answer is: every 28 days.
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