If you don’t have your period at the time of menstruation, but you have menstrual cramps, it is often due to the following reasons: 1) You may have to have your period soon, and the pelvis is in a state of congestion, so you will have menstrual cramps. 2) Clinically, you are already pregnant, and it is recommended that you rule out ectopic pregnancy, and go to the hospital in time for a blood test for blood HCG or urine HCG, to rule out pregnancy, and if you have a positive reaction do an ultrasound in time to find out where the gestational sac is located. If you have a positive reaction, do an ultrasound in time to understand the location of the gestational sac, so that clinical treatment can be given as soon as possible. 3, if there is pelvic inflammatory disease or endometriosis patients, will also appear in the absence of menstruation, it is recommended that you can be further examined, to exclude the possibility of other diseases, and give clinical treatment in time.