Constant stomach pains are not a sign of pregnancy. This symptom could be due to a type of gastro-intestinal disorder. Gastro-intestinal bleeding can be a very serious sign that something is wrong. If the blood originates from the upper digestive system (esophagus, stomach and duodenum) it manifests with melena (black blood in the stools). For example, peptic ulcers, blood from a stomach cancer, and esophageal hemorrhoids manifest with melena. Sometimes, if the bleeding is very severe, the blood can be vomited (haemathemesis). If blood originates from the lower digestive tract (small and large intestines) there will be red blood in the stools (rectorrhagia). Intestinal tumors, hemorrhoids, inflammations can manifest with rectorrhagia. Sometimes, blood in the stool can be invisible (occult bleeding) and can be detected only with a laboratory test.

In your case, you didn’t mention that you throw up blood or have blood in the stools. How did your doctor conclude that you have intestinal bleeding? You can request an abdominal ultrasound and endoscopy (gastroscopy and colonoscopy) to examine the entire gastro-intestinal tract. You may consult an internist to gather more information and to request advice.