Help advice.

💞Flor💞 • expecting my first baby boy! due OCT 12👶💙

Okay ladies..

So I've been spottin 4 days now and i went to the bathroom and on my liner i saw some spottin with dark yellow or brown lol sorry ... But what could it mean my af starts in 3 days i dont have cramps or sore boobs but just kind of nauseous. .. Is their a chance i might be pregnant or my af is going to start.?? Ugh .. I know you guys can't give me an actual answer..