Don't know what I did. I sat in my car and reached over to the glove box to grab something and feel like I pulled something in my side. It feels like a side cramp you would get after eating and walking or something in my lower right hand side. It's a constant pain. Feels worse when I'm walking or hit bumps when in the car. It's been about 20 minutes straight now. Anyone pulled a muscle before. I'm 4 days overdue now. Can still feel babe moving around.