Spotting in wk 5!?

Tanya
Hello ladies,
I would love some advice if any of you has experienced this before.
I am on week 5, so far no symptoms but cramping, tired, moody, and very thirsty. Today I woke up, and there were literally 2 drops of blood dark color on my underwear. No pain, no nausea, and it didn't happen anymore throught the day. Is this something normal, or something I should be worry about? This is my first pregnancy, and I know 1st trimester is super important and I am concern. My first appointment is not due till December 17th.
Thank you!!!!