Question

what is menstrual cycle​

Answer 1

the process of ovulation and menstruation in women and other female primates.

"the menstrual cycle ceases during pregnancy"

The menstrual cycle is the regular natural change that occurs in the female reproductive system that makes pregnancy possible. ... The first period usually begins between twelve and fifteen years of age, a point in time known as menarche

Answer 2

The menstrual cycle is the regular natural change that occurs in the female reproductive system that makes pregnancy possible.

... The first period usually begins between twelve and fifteen years of age, a point in time known as menarche