Why do girls start their period?!
Question:
Why do girls start their period?
Like what does it do ?
Answers:
Well there are some blood vasels and other smooth stuff that gather inside your uterus, and if there is any fecundation (that is, if you're getting pregnant) the baby will develop in this place. It's safe and proper for the baby. If there is no fecundation, everything will come out through your vagina and it will start all over again to get ready for a possible fecundation.