My period re-started after a Brazilian wax

I like had a normal period (for me) and on Day 7 it ended. I had an appointment for a Brazilian wax scheduled for two days afterward. I got the wax and within one day my period restarted with all of the symptoms including bloating and fatigue. It was also a lot of dark blood and a different (bad) smell so I wasn’t certain it was my period at all. Has anyone experienced something like this before?