Menstruation delayed eight days small abdominal pain, first delayed eight days to see if you can get pregnant. If you are of childbearing age, it is normal for your period to be delayed within a week, but if you have not had your period for more than eight days and your belly hurts, you must take an early pregnancy test to see if you are pregnant. If you are not pregnant and you have delayed your belly pain for eight days, you must have an ultrasound to see how thick the lining is and to determine the approximate time of menstruation. It is possible that the stomach pain is coming to menstruation, the stomach pain may not come to menstruation, combined with some pelvic inflammatory disease, there will also be small abdominal pain, and then there are people who may be pregnant, small stomach pain, to see if there is a pre-eclampsia abortion. So menstruation is delayed for eight days, the early pregnancy test must be done first, to determine the case is not pregnant, according to the ultrasound tips, the thickness of the lining decided to use some regulating drugs to let her come to menstruation, if the inflammation caused by abdominal pain, then eat a little anti-inflammatory drugs to treat the symptoms.