Answer:
The average menstrual cycle lasts 28 days. The cycle starts with the first day of one period and ends with the first day of the next period.
Explanation:
keep safe :)
how long is a menstrual cycle? For
menstruating women, an average
menstri cycle lasts 28 days. it starts
with the first day of the last period and
ends with the first day of the next
menstrual period.
