Pregnancy tummy ache is roughly similar to menstrual cramps in that both of them are associated with pain in the lower abdomen and a feeling of anal swelling. If the stomach pain is confirmed to be pregnancy, it may be caused by the enlargement of the uterus pulling on the ligaments in early pregnancy, or it may not be ruled out that it is due to a preterm miscarriage. If it is determined to be a pre-eclampsia miscarriage, bed rest, fetal preservation medication and symptomatic treatment are also needed. If the result of the test is not pregnant, it is dysmenorrhea. In this case, you can drink ginger sugar water or brown sugar water to promote the discharge of menstrual blood, which will help to relieve the symptoms of dysmenorrhea.