Is this normal? (feminine problem)

I have a very irregular menstrual cycle (this isn’t the issue, just background info). I get my period roughly every 2 months or so. Sometimes a month and a half. Sometimes 3 months. I’ve come close to being regular once or twice, maybe a week late or so. As far as I can remember, I’ve never been early. This year, I got my period August 21, then didn’t get it again until November 16. A stretch this long only has happened once before, and if I remember correctly, my next cycle wasn’t very late. But this time, my next period came a couple days early. And what’s weird about it is, I had “spotting” 2 days ago, and some cramping, but didn’t bleed the rest of the day. Yesterday, there was still no blood, but my right ovary was still cramping, and I chalked it up to ovulation. But then today, I start up bleeding again (full-on this time) and have no cramps (I usually get them at least somewhat at the start of my period). What the hell is going on?!