So I got my IUD Jan 13, had a period Jan 28-Feb 5. I started cramping a couple days ago, around when my period was expected, but there wasn't any blood, which I expected since I got the IUD. I did have a little bit of brown spotting (old blood) which also didn't alarm me. But then I started getting this weird gloopy gray-brownish discharge. It also has a few chunkyish parts with darker stringy bits. What is going on? Do I have an infection? Should I be worried?