Hello, thanks for using HCM.
there are numerous conditions that could account for the crampy pain you feel. If the pain is recurrent and associated with bloating, diarrhea or constipation, it could be a an irritable bowel syndrome
, if its associated with headaches, breast pain, changes in mood, food cravings low back pain
and occurring before you expect your menses, it could be premenstrual syndrome
, other causes could be pelvic inflammatory disease
, or an ovarian cyst or endometriosis
It's possible to have a one week delay of menses but that should be assumed after a pregnancy has been excluded. I will advice you do a pregnancy test. If it turns out positive, you will need to do an ultrasound to confirm the location of the pregnancy. If it turns out negative then you need to be investigated for the other causes of your pain.
Hope i did help.