Is it normal to have to poop more often when on you're period?

Let me explain: It is common for women to poop a lot during their period because of hormone level changes. The hormones that signal the release of the lining of the uterus also signal the gastro system; making your bowels move more. This is also why girls commonly have excessive gas during their period.

Yes: Many females have more frequent and looser stools around the time of their period.