Is something wrong?

I generally skip a few months of my period week so I don’t have to deal w it then I have one week that I do so it doesn’t get too bad. I heard 3 is the max so that’s what I’ve been doing. Recently I think I skipped 4 period weeks on accident and now when I’m on my second week of pills I’m bleeding this dark brownish color blood and my cramps are a lot worse. Should I see a doctor?