All the time, I feel like my uterus is a balloon that is being blown up, bigger than it should be and it's about to pop, but it never does. This happens randomly throughout the day, not during certain movements or anything. Sometimes it hits me so hard, it's like a punch to the pelvic region. I have gone to the ER for it, and they told me it's just my body stretching. And my ligaments stretching faster than normal, because it's my first pregnancy. Ehhhh. It's scary though.