A twitching in the right lower abdomen at nine weeks of pregnancy may be caused by low progesterone in the body during early pregnancy and increased sensitivity of the uterus. On the other hand, it may be caused by intestinal peristalsis. 1. elevated uterine sensitivity, low levels of progesterone in early pregnancy, patient fatigue, fatigue, resulting in increased uterine sensitivity, such symptoms, generally in bed rest after the symptoms will be relieved. 2. Intestinal peristalsis or intestinal spasm, the right lower abdomen has a female intestinal tube, if you do not pay attention to diet, eat something unclean, or eat too greasy, resulting in increased intestinal peristalsis, the appearance of a small stomach twitching symptoms. If at the same time accompanied by increased frequency of stools, or the nature of the watery, consider the intestinal inflammation caused by the need to give medication under the guidance of a doctor. Nine weeks of pregnancy, the right lower abdomen twitching more frequent or serious need to consult a doctor.