Skip Navigation LinksHome > Causes of Infertility > Menstrual Cycle

Menstrual Cycle

Female Hormonal Levels
Female Hormonal Levels

Days 1 to 5
The lining of the womb (known as the endometrium) is shed during menstruation (monthly period).

Days 6 to 14
The lining of the womb gradually builds up again and, under the influence of oestrogen, becomes thick and juicy ready to receive and nourish a fertilised egg.
Oestrogen stimulates the mucus produced by your cervix (neck of the womb) to become thin and slippery so sperm can swim through it.

Days 15 to 28
Rising levels of progesterone from the corpus luteum increase the blood supply to the lining of your womb making it the perfect environment for a fertilised egg.

If the egg is not fertilised - or is fertilised but doesn't attach itself to the lining of the womb - the egg breaks down. The corpus luteum shrinks and progesterone levels plummet. This causes the blood vessels in the lining of the womb to break up, the walls of the womb to contract, and the menstrual cycle to start again.

11th December, 2011
The Telegraph, Kolkata
Modern-day technology has allowed us to create an environment outside the body which is almost as good as the environment inside the body.

Dear Dr. Rajeev Agarwal,
Thank you so much for all the care, concern and support you have given me.
We shall eternally be grateful for your kindness.



Stay Connected

Consultation Unit:
3, Cooper Street, Kolkata – 700026

Contents are copyright © of Care Fertility Solutions Pvt Ltd