What is this feeling?

Sasha
Ok so I'm feeling this weird pinching sensation in my lower left uterine area. I'm 28 weeks pregnant. Could the baby be hitting a nerve? Is that happening to anyone? What does it feel like for you? It comes and goes but when I feel it, it's painful. Makes me cringe. It's like a sharp pinch. I'm trying not to worry bc I'm not bleeding or cramping and my baby is kicking like normal. Just wondering if anyone has any insight on what might be happening. Thanks :)