Pink bleeding in early pregnancy

sooo I got my BFP yesterday morning, then today me and my partner had sex and straight away noticed I was bleeding a bit so I went to the toilet and on closer inspection I'm bleeding light pink which I know can be okay but I've just done another test and it's negative? I realise I dipped it in my urine for longer than I should of so idk if that can affect it. I'm so stressed out, I was so happy yesterday I'm just praying this is some kind of mix up.. the bleedings stopped after an hour but it wasn't heavy and can only notice it when I wipe