Green diarrhea during pregnancy?

I'm not exactly sure how far I am I took three test two days ago. But yesterday and today I've had really bad diarrhea and I know that bile can cause poop to be green when it goes through to quick. But I've went like 8-9 times today and I have really bad hemorrhoids from it and they keep bleeding. I go to the doctor Thursday to find out how far along I am and what my due date is. But I was wondering if this much diarrhea is normal? I haven't changed my diet or exercise regime and I was taking prenatal vitamins for up to three weeks before I got pregnant.