braxton hicks? this early??

cheshirekaatttt

lately I've felt a tightness on the top right of my belly, when I'm stressed or yelling at my other two kids. It's been on and off for a few days now. I had csections with my first 2, so I've never actually felt a contraction... I have an ultrasound appointment tomorrow, so I don't know whether to bother the doctor or not... would anyone else be worried?!