When I do deep squats or poses like happy baby, I get a really tight pinch in inner thigh/groin?

Have been trying to isolate this feeling and what causes it. I noticed tonight as I was working on an at home exercise routine that when I try to keep knees straight into a proper squat, I feel a really uncomfortable pinch and my knees want to spread out to compensate for it. Any idea what's causing this, and is it something I can stretch out, or should I stay cautious and avoid? Thanks for any help. (30/m, 6'3, 160lbs if it's relevant)