First Signal warning!!

This may be in the wrong group but I wanted to let y’all know! I recently got a ton of first signal tests from Walmart, about 10 just to have them. Well my 2 weeks are up so I tested. Positive. Very faint line though. Took a couple more throughout the week with the same result. I wasn’t feeling pregnant at all though. I had my husband and niece take a test and boom...very faint positive as well! They all looked the same. I was so disappointed but also not surprised as I just knew I wasn’t pregnant. I won’t be buying these tests from now on at all!