So I'm 4.5 months postpartum and I just had my gallbladder out 10 days ago. My husband and I had unprotected sex 12 days ago (only once). So I took a pregnancy test this morning since I was feeling a bit off yesterday and I got a positive test but I did read it outside of the time line since I got distracted looking after my baby. So I freaked out when i saw it and took 2 other tests, one is the first response kind and they are both negative, I read them within the time frame but my urine wasn't very concentrated. In the attached picture the top test is the positive and the bottom 2 are the negatives. Most likely I'm not pregnant right? The top test was just a fluke or something because its outside of the time zone?