Need some advice

I’m 3 days late now but I tested negative 😞 Really feeling bummed out, my period has been on the dot and I don’t feel like AF is coming this time.. I’m cramping for the past 2 days but they are very dull and lots of pale pale pale yellow CM. Can someone tell me their stories of how they didn’t get their BFP until weeks later of being late? Give me a little sense of hope 😔