7 weeks pregnant with a vague pain in the stomach is usually not very serious if it is caused by improper diet. If it is caused by illnesses such as preeclampsia or ectopic pregnancy, the situation is relatively serious. 1. Improper diet: If a pregnant woman does not pay attention to her diet during pregnancy and consumes too much stimulating food, it may cause abdominal pain. If it is a poor diet that causes a vague pain in the stomach at 7 weeks of pregnancy, it is usually not serious and can be regulated by diet. 2. Pre-eclampsia: Pre-eclampsia refers to a small amount of vaginal bleeding accompanied by paroxysmal abdominal pain before the 28th week of pregnancy, the cause of which is mostly related to the embryo and the mother. If you are 7 weeks pregnant with a vague pain in the stomach is caused by pre-miscarriage, the situation is relatively serious. 3. Ectopic pregnancy: Ectopic pregnancy refers to the fertilized egg in the uterine cavity outside the site of the bed development, the patient will appear menopause, abdominal pain, vaginal bleeding and other symptoms, the cause of the fallopian tube-related lesions and contraceptive failure and so on. It is not possible to generalize whether a 7-week pregnancy with vague pain in the stomach is serious or not, and it is recommended that the patient seek medical examination for a clear diagnosis.