I've got the same on this type of pill, very random periods
This is exactly what happened to me and I saw the doctor about it yesterday She’s put me on a different form cerezette which is apparently a more expensive version she said sometimes this can help settle the periods and to try them for 3 months and go from there
I'm on this pill and it was the same for me. I was on it before I fell pregnant and when I started on it I had a 'period' every month for 3 months then they stopped and I would bleed out of the blue only now and again. I'm back on it now after having my baby in April and I have bled 6 times, sometimes longer than others but it's just the hormones changes in your body. It should settle down though x
Very normal for this pill (I’m a sexual health/contraception nurse), can take 3-6 months for bleeding to settle, and even then it may not settle into any sort of predictable pattern unfortunately.