Irregular/Regular Periods

So I’ve been getting my period for about 2 and a half years now and for about the last 2 years it’s come only about every second month. I thought my period would become regular and come every month after the first two years or so but it hasn’t lollll, it still could though. I’m not on birth control and don’t have any hormonal issues (that I know of) -also a virgin btw- I’m just wondering if anyone else has the same situation as me. Feel free to comment if it’s more complicated than the poll options!

I feel like periods are seen as everyone gets them every month and women can always predict when they’ll get it but I just want to see how true that actually is!