BC Side Effects?

I recently started Mono Linyah and I've been having a bunch of issues since I started taking it. I'm about half was through the final week and I'm having irregular bleeding, nausea, and mood swings to an extreme. Mind you, I'm 9 days until my next period so I don't think it's related. For the most part I've been good with taking it every day at the same time- the first week I was struggling to adjust but I got it sorted out. My concern though is if it's just a bad reaction to the BC or something else, possibly pregnancy since there's a possibility.

I plan on getting in touch with my doctor and seeing about switching to another form of bc. I was just wondering if these were common side effects for other people. My friends I've spoken with haven't had any problems with theirs so I'm curious

Thanks in advance!