False negative, after 3 positives?

Kr

Hi everyone, so on December 23 rd I took two tests, dollar store brand, and both were a faint positive. I took another one on December 24th just to make sure, this time a digital one and it said pregnant. I took both all tests in the morning like it said to. I have been feeling symptoms of pregnancy so far and no period or spotting. This afternoon I took another digital and it said not pregnant. My pee was very diluted with water, is it possible it was a false negative? I really hope it was. I will try again first thing tomorrow morning but now I’m freaking out and trying not to stress. I told my close family members on Christmas as I was so excited...