Cramps are common in early pregnancy. As long as they are extremely painful you should be fine! :)
During the first trimester (1st 3 months of pregnancy) you'll feel mild cramps and pain in the back specially at the lower back, it's normal. Anyhow, you better go see your gyneacologist is pain persist just to be sure.
if pain persist.....(is pain persist)
thanks guys the cramps have now receeded and I feel much calmer just can't waity for first scan now.