Should I be concerned

Okay so I just want some advice. I’m 17. I’ve always had irregular periods; no period for months then 3 in one month. That kinda thing. Well here recently I’ve been giving that and all my other body signs a lot of thought. I have almost all the symptoms of PCOS. I don’t really talk to my mom about this kind of stuff, I just feel weird about it. But I guess what I’m getting at is that I’m afraid that I won’t be able to have children when the time comes. What should I do?