Period weirdness

jay

I’m 20, I understand that period irregularities are common in puberty. However, I’m far from that now. Anyways, I track my period on an app that guestimates when my next period will be. Its usually correct, its either 2 days early or 3 days late. Anywho, this month my period has came 9 days early,it happened last month,too, although that cycle was 25 days. I got my period on the 3rd of February, its now the end week of Feb and it just started again. Thats a 22 day cycle. Its like, at what time did I even ovulate? Its just kind of scary.

I dont know what it could possibly be, I really hope I’m not gaining weight or have a hormone issue or something. I’ve been trying to mantain my weight (because I like where I’m at) by walking 2/3 miles every day and eating a bit less. I’m just trying to ask is this normal? Is a short cycle like this normal or should I be concerned.. I might make an appt tomorrow with my doctor but I wanted to come here first. My mom always says “oh sometimes your period can reset” but what does that even mean LMAO