I love my maya wrap and don't want to get something different, but I can't figure out what I'm doing wrong that my son's leg/foot keeps turning purple. It's always one side, it's like I can't put the sling under his butt in a way to give good circulation to both legs. He's 4 months+ and it's when he's facing me. I'm trying different things, could it be it's too tight or too loose in the wrong areas? Also, I'm a bigger mom with large breasts and I'm wondering if this might have something to do with it. It feels like it's on right to me. ideas?