Cerelle pill and irregular periods

I used this for 6 months hoping my body would adjust but had to stop. My periods became really irregular, and super heavy. The first month, I had 2 periods (both lasted around 10-12 days), second month I got one period, 3rd month I got nothing, and then months 4 - 6 I had 3 periods in 7 weeks, all lasting around 12 days and far heavier than my normal periods. I felt like I had backache most of those last couple of months as that's something that happens whenever I'm menstruating. I've tried other pills and never had side effects like this, so I've stopped these now and will go back to another type of pill.

Had some mood issues during the first 3 months such a depression, low moods, emotional but put that down to my body adjusting. But after 5/6 months all the side effects of depression, low mood, constant crying can back much worse. Had 6 week period cycles with irregular bleeding and spotting and heavy cramping. Had to come off the pills as they were affecting my life so greatly.

I was on this pill for nearly 6 months and during that time I was very nauseous. I also had horrendous mood swings and completely lost my sex drive. The worst symptom however was the random bleeding, completely out the blue with no warning which was so inconvenient