I have cramping backpain leg pain and light spotting. 5 days after period. I'm sure im not pregnant. Didn't test. But I haven't had sex until lastnight?

Do not delay. Your ob-gyn needs to figure this out for you. Even if you are not pregnant, it could be a problem with ovaries or uterus. Get it checked out now, not when it becomes serious. Leg pain can be blood clots which can go to your lungs and be life-threatening.