45 days no period

I just started my period today. I haven't been majorly stressed or anything this month. Although I did travel for business, and according to google that does switch up the body clock for traveling through time zones. Most of the time it has been around 32-35 days for me. But 10 days more than usual is kinda strange and it was this high last year too. Is it really just an ebb and flow in periods? 
Sincerely,
Confused.