Why are menstrual cycles absent during pregnancy?

Identify True/False statements, Correct each false statement to make it true: Menstrual cycle ceases during pregnancy. (True/False)

Identify True/False statements: Menstrual cycle ceases during pregnancy.

Define pregnancy.

Menstrual cycle is completed in

On which day of the normal menstrual cycle, bleeding occurs?

The stoppage of menstrual cycle is called :

Explain the following: The second half of the menstrual cycle is called the luteal phase as well as the secretory phase.