Need some advice from mummy's to be

I woke up last night at 2.30am with really bad stabbing pains that came and went they lasted like an hour in total the I fell asleep again woke up this morning with a tender tummy just touch. .. I am only 7 weeks no bleeding are anything ... I am constipated aswell and am wondering if that would of been the cause of the stabbing pains. . Please some advice r reassurance please