I am 15 weeks pregnant and yesterday I noticed white clumps in my stool. Just at the very end of it though. I had no diarrhea, yet this morning, I am and there are still some, not many, white clumps. Should I go see my OB? Could this be serious? I am 28 years old, 5 2 and about 140lbs (pre-pregnancy weight about 125lbs). This is my 2nd pregnancy. And I am usually a healthy person, no allergies to any medications either. Please help. Thank you