iud and took a test

Ok so i took this test a couple hours ago i have mirena for almost 4-5 months now and been missing my period for a little over a week. I went to buy some tests and i didnt use my morning pee but i was in a rush while taking the test it had a very faint line i was considering it negative when i saw it then left before the window time was over. So i woke up something told me to look at the test again and i can clearly see a faint but positive line in person idk if its visible with my camera my iphone 5s has a not so great quality. What do you ladies think?