Period 2wks late? Is this bad?

Andrea

I got my mirena back in March. My first period after was 6 days late. This cycle im exactly 2 weeks late today. I had just a little spotting yesterday but then it stopped. This is the first IUD I've ever had so I don't know if this is normal or not and I didn't want to bug my dr if I didn't have to bc they are swamped bc of covid. I do have an appointment in 2 wks but should I ask to get in sooner? Help!