I might have PCOS at 15

So I might have Polysistic ovary syndrome. I'm 15 and this scares me so much, would anyone be able to explain about it in more detail. The only symptom I have is regular periods (4 then 4 now 7 month intervals) I think just got it today after 7 months. I'm quite scared and I have to wait to go back to the Doctors in September to have tests done to confirm if I do. Just would like some help and support - from a very scared Ellie