Worrying myself .

I know I should never consult doctor google because it typically gives you the worse case scenario . Anyways I have had diareah for about four days now yesterday I went three times , then tonight my stools were loose again and appeared to be a lighter color then normal . I haven't been eating as healthy because the budget has been tight for a few days . I also have been eating Special K cereal which has a lot of fiber . I don't think I've ate it enough to have diareah for four days though. I'm not sure if this is an early symptom or what ? Im having a few other symptoms along with this that could be related to pregnancy . This is totally out of the ordinary for me because I typically go three times a week an usually have a hard time going . So I'm worrying myself .. Google said something about lack of bile ..