Do periods go through a recycle yearly?

I am about 12-15 days late, around two years ago I had the same thing where I was 17-19 days late but got my period after.

Is this normal? I asked my sister and she says it’s a recycle, but when I google it, nothing of that sort comes up. So i don’t know if I am the only one experiencing this?

Ps* I also find myself discharging ALOT. To the point I think Aunt Flo came...