Pregnancy with IUD

Chelsea

So I got the Mirena IUD back in April of 2020 and I have only had spotting and then I just started having my period 2 months ago. 2 full 5 day cycles. Well my husband and I had sex 2 times while I was ovulating, and now im 3 days late. I dont know if its just because the Mirena can mess with your period or if I should take a pregnancy test. Im freaking out a little.