Irregular periods & Paragard IUD

Has anyone else experienced long cycles after having the Paragard IUD and do you know why? This is the only bc I’ve ever been on and my cycles use to be 28-31 days long but after year 2 of having my IUD in, my cycles have gotten longer and are 40-45 days long now. I’ve also missed 2 periods this year. What’s nice is that my period is only 3-4 days long though and only heavy for a day!