Prob tmi but I spotted for a couple of hrs the the beginning of this week (6 days before af) now…

Prob tmi but I spotted for a couple of hrs the the beginning of this week (6 days before af) now it's 3 days before af is suppose to arrive and I've been getting headaches mood swings and woke up this mornin with a slight nose bleed. What could cause this.? Plz and thank you. (All I want for Christmas is two pink lines)