请问period的用法,一般是on the period还是in the period还是直接说I have the period?当period解释为月经的时候
问题描述：
请问period的用法,一般是on the period还是in the period还是直接说I have the period?
当period解释为月经的时候
答
I am in the period of catamenia.
I am in the period.
It is my period now.