Am I becoming regular?

I'm 14, So, the past few months I've been getting my period earlier and earlier, it started off with me skipping a few months, So like 64 days, then the next cycle was 56, and after that 40 days and my most recent 32, it's only the 18th day of my cycle, and I'm starting to get cramping, back pain, and all the symptoms I get when I am pmsing, is this a sign that I am becoming regular?