TMI, bowel movement question

Everyone told me I'd be constipated. I even got stool softeners in a new momma care package from a friend. My Dr even warned me because I had to start taking an extra iron supplement on top of my prenatal. But my BMs are loose. Not quite diarrhea, but more loose than normal. I'm 34 weeks + 1 day and I've heard some people say this happens to them before labour as their body's way of clearing out and preparing, but I think I'm too early for that. Has anyone else experienced this?