Should I stop taking my birth control if I have heavy cramping?

I am a 32 year old female who just started taking birth control (Seasonique) a few weeks ago. I was told by my doc that this would help with my endometriosis and the large build up of fluid in my abdomen. I was recently hospitalized and had 4 liter of bloody fluid drained from my abdomen in early September and another 3 liters in late October. I was diagnosed with endometriosis after laproscopic surgery a month ago. I've never been on birth control before. I've been having break through bleeding since the second day of taking this and really bad cramping (worse than my normal periods) for that past week or so. I'm called the docs office and was told to continue to take the pills, but I'm feeling even worse today. My stomach is now bloated and I'm worried the fluid is back. I have an appointment on Monday, but I'm wondering if I should just stop taking it...at least until I go in to see the doc. Will it get worse if I stop? I'm frustrated :(