Cerelle pill and period like cramps

I've only been on this pill for two months so there's a chance this may calm down after the full adjustment period, but the side effects have been interesting. Most notably, my cycle has gone from around 35 days to 13 days, and I have been having a period every other week. The first two periods gave me hope because they were significantly lighter - to the point where I was questioning whether or not I should even log it as a period - and painless. However, the next three periods I've had so far have been gradually getting heavier and I'm getting more cramping. It's weird though because, for most of my period it's still quite light, but on around the second or third day, I do have a few hours where it's quite heavy and crampy, then it subsides again and the rest is light. I had spotting between the first three periods but that's stopped now. Other than the annoying cycle changes, I had a constant lingering headache for the first two weeks, I'm getting more acne than usual, and some vaginal dryness before my period. I don't know if this is worth staying on as I'm only on the pill to manage my painful and heavy periods. Current plan is to finish my three months' supply and take it from there.

I'm giving this pill more time because maybe it's just an adjustment. But I've been a bit weepy with sore breasts and spotting every week. Also a really tender feeling in my lower abdomen-especially during sex. Which I hate obviously. So I'm definitely not getting pregnant because I no longer enjoy sex.. so in that respect it is effective. It's getting one more month and then I'm done.

I started the mini-pill as a quick method inbetween the time I was waiting to get the Copper Coil contraceptive. It has worked very well! No spotting or bleeding. Except, my periods were slightly heavier but had little to no cramps. I was very skeptical of the pill affecting my mental health but I am not sure as it could be other reasons!