Ok so last night I went to lay down for bed and my lower stomach started cramping and my uterus felt like it was tighting up..I will be 14 weeks sunday. This is my second pregnancy. My first was 6 years ago so I dont remember having them this early. I know it can happen but it was weird. It actually made me take some deep breaths..And they were every three mins and lasted like a min each time and stayed that way until I got to go pee which I say was about 30min..If my uterus was tighting up I would have just thought it was from my uterus growing..It is just weird how different your pregnancys are each time..