Pre-BCP, my cycles were 28-60 days apart, I had acne before my period, and I had cramps, bloating and the other issues associated with PMS.
I was diagnosed with PCOS when I was 18, mostly based on these irregular cycles but also because I have 2 older sisters with it. The doctor prescribed BCP and I followed his instructions. Like you, I had no moral reason not to take this medication that was supposed to be helpful. While taking BCP, I still had acne (this was before Yasmin so I can’t speak to that) my cycles were still irregular (usually bleeding twice a month despite taking many variations of the pill) and the PMS symptoms remained.
After BCP, my cycles were 5 to 180 days apart. They occasionally lasted for a month, or two, or three, or four. I finally sought help from the Pope Paul VI institute, where they actually try to treat the medical condition causing the symptoms rather than just trying to alleviate the symptoms. I charted my cycles, the doctor reviewed them, and medically intervened. I now have 28-30 day cycles (with no BCP) and the other symptoms are better too. Their treatments are all in line with Catholic doctrine and they have trained doctors all over the U.S. so you can probably find help in your area.
In my case, the same problems that were causing the symptoms made it virtually impossible for me to get pregnant and even more difficult for me to carry a child. BCP did nothing to help me and only masked the actual underlying problem. I still haven’t had a child and honestly I think that if I had seen PPVI sooner I would have had a better shot at being a mommy by now.