Answer:
The length of the menstrual cycle varies from woman to woman, but the average is to have periods every 28 days. Regular cycles that are longer or shorter than this, from 21 to 40 days, are normal.
Explanation:
sana makatulong
the average is to have periods ever 28 days. Regular cycles that are longer or shorter than this, from 21 to 40 days, are normal.
