Period length

Khamaia • My snapchat is khamaiaj, Add me 😊😊😊😊
So my period has been on for damn near 11 days now and my usual is 5-6 days. Is this bad? Should I speak with my gyno? When I first got my IUD put in this happened like 3-4 months down the road but ever since then it was relatively regular until now. I figured it was because of stress.  Any thoughts?