Anyone get weird periods from time to time?

I don’t know if this is normal because I can’t remember if you had periods like this before but this month seems very off. First of all, my period was 13 days late. I didn’t get it at all in February. I got it yesterday and even then, it’s not as heavy as it normally is and very minimal cramping which is weird because I get heavy crampy periods. I’m on day two and still bleeding normally but not filling up a pad…. I took two pregnancy tests and they were negative. I’m just wondering if this has been experienced by anyone.