According to the app, I’m about 12 days late to my period and each day that I don’t get it, I’m more and more stressed! I took two pregnancy tests (one two days after I was supposed to start and another a few days ago) and they were both negative. My partner did finish inside me the last few times we had sex a few weeks ago but I have the copper IUD. Has anybody ever been this late? Should I take another test?