if there is no sucessful union of egg ang spermcell the corpus luteun breaks down and the progesterone start declining. What happens to the lining of the uterus?​

Sagot :

Answer:

This is the time of your cycle when you have a period, also known as menses. The first day of your period is a visual marker that you and your healthcare provider use to distinguish both the beginning and end of an Ovulation Cycle. This phase typically lasts 4 to 7 days.

When you have a period, your body is shedding the nutrient-rich lining created during the previous cycle from inside your uterus. This occurs when estrogen and progesterone hormone levels decrease and there is no pregnancy.