Have you gotten pregnant on the Paragard IUD?

I am about two weeks late now. I've been on the Paragard IUD for two years now, and it has been great!! But now I'm really getting worried because my period is suuuuper late. It usually varies a few days, in fact it was like 3 weeks late in May, but I knew that was because I had just started working nights and my sleep schedule and all that was all messed up, but now I don't have an explanation for it, other than maybe stress. I am on my way to buy a pregnancy test, although there's less than 1% chance of pregnancy. That's why I'm asking you ladies if you've ever gotten pregnant on Paragard