[Katana]

Cycle irregularity is a sign of imbalance. It fits any kind of imbalance though, so without knowing the hormones it's a crapshoot to try to guess what kind.

Irregularity is considered normal for the teenage years, I got the implant at the age of 18 so I could have still been irregular. The longest I ever went was 6 weeks, but I attributed that to stress because I had just moved out of home, 200 miles to a new city and it took a while for me to adjust. Other than that, it could be anywhere between 3-5 weeks.

Oh. 3-5 weeks isn't THAT irregular. And yeah, that's pretty normal yet at your age and definitely was when you were 18.

I guess, it was just impossible to predict, one time being 5 weeks, then another being 3! I was never knowing when to keep a sanitary towel handy. It was eventually known among my friends that I basically kept them on me 24/7 to be better safe than sorry.
Or if I had a few in a row 3 weeks apart, the worry when it didn't arrive for 5 was a nightmare (i was nearly always worried something was wrong with me)