I used to run frequently before I was pregnant. I stopped for a while just cause it was too hot during the summer, then I got pregnant and had horrible morning sickness. I'm finally feeling better and have been walking a few miles each day. Think it's ok for me to start jogging? I tried just a little bit today and my lower abdomen feels kinda sore. I'm not sure if that just cause there didn't used to be a baby there and now there's something extra? I'm 15 weeks btw.