Mirena iud while breastfeeding/milk supply affected?

Annette
Has anyone else gotten the mirena iud while breast feeding? I had mine placed at my pp appointment, and my baby is 6 weeks old. Everything was going well, but now his pooping has slowed down over the past 3 days. He pooped once (huge blow out) on friday, did not poop Saturday, and it is now 1:15 Sunday and still no poop. He has had plenty of wet diapers though. I started researching the mirena iud and read that it can affect milk supply. If that's the case I'll have it removed. Any advice ladies? 😊