So I took two tests which were early and negative, my period is suppose to start Saturday but can diarrhea be a sign of pregnancy my boobs have been kinda sore but not really I have had cramps and I've been really hungry but I love food, but my mouth has had a weird taste and eating is not much fun I also have a cold and I've been cramping has anyone had things like this? I've had diarrhea for 4 days. I have ibs-c so if anything I should be constipated