I had a normal period from May 11-17 and then I began spotting from May 18-July 5th. Then, I had a heavy, painful, and uncomfortable period from July 25- August 2. I usually have a cycle 7 days so I was very uncomfortable with these unoriginal numbers. Now my last normal period that stopped was very painful and on glow, it says I was supposed to start today, but on another P Tracker, I'm starting in 9 more days. I'm very confused lol (55 days between each period starting from August 2). Help?

P.S. : I'm getting pimples and boob pain and little cramps and I'm moody. I'm a virgin and I'm 16 lol