Is my period considered regular?

I got my first period 5 years ago, when I was 14. It was very irregular and sometimes I would miss it for a month or two at at time. After 3 years it came every month and still does but it’s weird…

For example, it will start February 1st, then March 3rd, then April 5th, then May 8th, then June 11th and so on.

I thought regular meant it would start on the same day (give or take) every month but mine seems to move every month which makes it a little hard for eve to track my ovulation and period properly, so then I get messages telling me my period is late which isn’t the case, it’s just that I ovulate later and later every month.

Thoughts? Is this weird?