how would someone is pregnant not menstrate
Yes
yes, if you are a girl, you menstruate.
You would change just as you would normally - take a tampon from your locker and go change in the bathroom. If someone was to notice it doesn't matter, people know that as a woman you menstruate and there is no shame in that what-so-ever.
man dont menstruate
Thankfully, female guinea pig don't menstruate.
No women fail to menstruate. It comes naturally.
No, only people with female reproductive systems menstruate.
No they do not.
No
No, they do not.
No, transwomen do not have uteruses or ovaries. Transwomen cannot menstruate or bear children.
You can menstruate anytime, anyplace! Just make sure you bring pads and tampons with you.