6 months postpartum

Chey

I am currently 6 months pp and my incision scar from my csection has been tender and sore the past week. I'm a sahm, just wondering if this is normal...? It feels like the pain is coming from the inner incision on my uterus... and I've been getting cramps. I no longer get periods either just light spotting. I've been on mirena for months now, and this just started this week, so I don't think the pain is because of my birth control.