not sure what this means?

Gabby

This is my second time getting my period (it has been regular so far) and last time it went for four days this time it went for five days. And on the 6th day I stopped bleeding in the morning, and at night I was dancing and I went to use the bathroom and I started bleeding again (luckily I had a pad on) today I’m not bleeding and I haven’t done anything active yet. Does this mean that anytime that I’m working out a lot mean I’m going to start bleeding? Sorry if this is a stupid question I’m honestly not sure.