It's round ligament pain. Prolly the most common thing I hear on here and In pregnancy period lol. The round ligament supports the uterus and stretches during pregnancy. It connects the front portion of the uterus to the groin. These ligaments contract and relax like muscles, but much more slowly. Any movement like going from a sitting to standing position quickly, laughing, sneezing, coughing, etc. stretches these ligaments by making the ligaments contract quickly, can cause a woman to experience pain that should only last a few seconds. Gotta take things a lot slowly now since your body Isn't the same and adjusting for baby.
Im 14 weeks + 3days and ive found out that if i twist the wrong way or move the wrong eay too i feel a painful pulling feeling. I just cant move as well as i use too now that im pregnant lol im thinking its just with the uterus stretching and expending its just not as comfortable to bend certain ways anymore