These answers are mostly silly. Just because you missed ONE period and have cramps. There are hundreds of things that can cause you to skip you period, stress being one of them. It is possible however that you could be but missing a period and some cramps are not good indicators. There will be many other symptoms to look out for as well, like nausea, vomiting, (this is gross I know but a true symptom) discolored and/or foul smelling abnormal discharge, tender breast, change in appetite and the list goes on and on. Someone else suggested pregnancy tests and I agree that should be your first step. Regardless of the test result you should test again in a week or two just to confirm the results are correct. Schedule a dr. appointment if you don't want to wait but depending on how long it's been since your missed period, it may be too soon to tell.
Pregnancy and your period have a lot of the same symptoms. If you just missed your period give it a few days before jumping to conclusions. Cramps from being pregnant happen because the ligaments in you abdomen are stretching and that usually doesn't happen toll around 4/5 months. Good luck.
no not really i went through the same stuff and i wasnt pregnant i missed my period and i was cramping people say yes because it sounds like it but if youve never gone through it or had it happen to you then you cant say but i suggest pregnancy tests and pray a lot .