Suggest Treatment For Cramps On Upper Abdominal Area

I had a tubal ligation in 1994 when I was 23 years old. I am now 44 years old and am 7 weeks late for my menses. My periods have always been pretty regular. I might be a week or so late once in a blue moon. My only symptoms are slight cramps in my upper abdomen region. Is there a possibility that I could be pregnant?I