5 days late but bfn :( Advice? 🙏🏼

I’m on cd 36 and already 5 days late. The last pregnancy test I took was today at around 4:30 pm because I was impatient to wait until tomorrow morning. I don’t really have any far out symptoms of pms or pregnancy, just an on and off feeling in my lower abdomen, sore & heavier boobs, pressure in my bladder(?), and literally a DROP of blood 2 days ago when I was 3 days late. I only noticed the blood because I wiped to check for my period. The drop of blood was brownish/red and gooey because of cm. No blood since. Oh and the mildest of cramps like once a day every other day, or so it seems. Has this happened to any of you? :( Thank you in advance. 💕🌸