I am 21 years old and I am 8 weeks pregnant. I have been noticing a light trace of blood when I make a bowel movement. I am trying to stop smoking because of my pregnancy, but I only smoke 1-2 cigarettes a day now. Earlier today, I was hit in the stomach with a bottle of hair conditioner, but I didn't think that would cause a problem because I didn't get hit really hard. I have never seen blood in my stool before today and I just need to know if the baby could be injured or if there is another problem.