Marina IUD concern 🤔

So I got the Marina IUD placed in November. My period came about a week and a half late which didn’t really concern me too much as I had just gotten the IUD placed. I started my period like December 3rd and it was a normal flow for about 12 days, not too light not too heavy. But since then I’ve had non stop spotting which is super annoying. Like it’s not enough to wear a pad or tampon but enough to make a stain or two in my panties every day or so. Have any of you experienced this?