Teenage daughter irregular periods

[Candacej]

Hi, I am hoping to get some feedback from other mums of teenage daughters regarding if they experience irregular/ missed periods?
My daughter is 13.5 and started her period 2 years ago but is still extremely irregular, sometimes going 60/70 days without a period and occasionally gettting one after 30 days. I am worried about it and was wondering if anyone else is experiencing this with their teenage daughter? It is only me who is worried though, she isn't bothered at all! Any thoughts welcome please!

I think my periods varied from about 21-45 days until I was around 17, though had my first at 12. I think that’s fairly common?

I was like this. Til I had my 1st child at 20. I bled every 35 days until I went on the pill again. I've had my 2nd and been sterilised and I'm every 28 days. They fluctuate if you are worried and worry about pregnancy etx then talk to her about the pill