Excessive discharge

Hey! I need helppp...

So I’m 16, and I have a ridiculous amount of discharge, like I feel uncomfortable with how much comes out and it’s to the point where it goes through my pants. I’m not pregnant(yes I’ve had sex but I have birth control and I used protection), I have the IUD Kyleena, and I’ve always had it, it gets frustrating and I just want it to go away. There’s no funky smell, no itching, burning, or anything. So any advice?