IUD Advice?

Miya
Okay so I've had my IUD (Skyla) for about 11 months(almost a year yayy!) and I know it can cause your period to thin and possibly "stop". Note that I haven't tested yet to see if I'm pregnant but I plan to soon. I'm just curious what are the chances that my recently missed period is actually caused by my IUD? My last hint of a period was some spotting for about a week and that was the month prior. Anyone have any advice or suggestions?