Menstruation is a women’s regular monthly bleeding called “Periods”. Changes in the female hormones called oestrogen and progesterone produced by the ovaries in the female body causes the menstrual cycles. These hormones cause the lining of the uterus to build up.
The appearance of the very first period is called menarche. This normally starts at the age of 12 but anytime between 10-15 years of age is normal
The duration between one period to another is approximately 28 days but it varies from individual to individual. Day 1 is considered as the first day of your period when uterus starts to shed the lining causing menstrual bleeding. As soon as the bleeding stops, the uterus lining starts to grow and gets thicker gradually to receive & nourish the fertilized egg.
During the middle of your menstrual cycles, one of the ovaries releases an egg and this process is called ovulation. The fallopian tubes then carry the eggs to the uterus.
If the egg is fertilized after sexual intercourse, conception happens which means the woman is pregnant. The fertilized egg is implanted in the uterus and starts growing. If the egg is not fertilized, conception does not happen and the woman is not pregnant. The unfertilized egg slowly begins to dissolve., the lining of the uterus is also not required anymore, so it starts to shed. The woman will have her monthly period and the cycle continues.