We accidentally did the deed when I was ovulating and because it was my birthday we didn’t use…

We accidentally did the deed when I was ovulating and because it was my birthday we didn’t use protection so I’m at the store about to go in and get a pregnancy test because aunt Clay is due today and I woke up with burning nipples instead of my period. I have taken some test during the two week wait and they were all negative but a girl just can’t help herself