Stabbing pain??

Rebecca
Anyone else ever get stabbing pains a few inches to the right of my belly button. No bleeding and it's not cramps, it is a stabbing pain? I've read that it could be constipation mixed with your uterus stretching but if I'm only 8 weeks would my uterus really stretch that far up my stomach already?? And I had a bm today and yesterday (tmi sorry) 
Just looking for some opinions and maybe answers! Thanks!