Irregular periods

I have never talked about my periods with anyone except my boyfriend. And that's only for baby making purposes. But I have irregular periods. I go months without getting one. Recently I went a year without it. And now I got it two months in a row. Which is weird for me. But I am trying to get pregnant. Anyone know of ways to regulate it without birth control ir advise on getting pregnant? Anything helps at this point thanks for ur help ladies