This could be caused by several things. The first could be that your period simply hasn’t come yet, but it will within the next week or two. It is not uncommon during ovulation for a woman to feel cramping. Some women also feel cramping regularly before their periods, not just during. Another reason for cramping may be that you’re pregnant. When a woman gets pregnant there is usually slight cramping with implantation, and with the uterus stretching to make room for the embryo. Lastly, you could be experiencing some sort of infection. STDs can cause cramping in the abdomen, as can UTIs and cervical infections.
Cramping/Dysmenorrhea in medical terminology is the pain during or before periods which is located in lower back. Sometimes females have cramping but no periods after that, just a small spot, which can be an early sign of pregnancy. But to confirm pregnancy one you to get pregnancy test done. So if the female has cramping, it does not mean that she is going to have menstruation. Cramping and no periods can be in case of hormonal imbalance, stress, lot of exercise during that month or even it depends upon the intake of food/diet.