Spotting (on dostinex)

On Wednesday 26/10 I had a weird, not fishy smell & when I took of my panty there was a light brown spotting & on Thursday ( the day I took the last dostinex tablet for the month) I told my bf that I felt that my period is coming, my body is like telling me. And then I went to wipe and there was a light pink & white spotting. I've never had these before. These happened 5-6 days before my AF is due. They only happened once when I wiped again there was nothing anymore. 

Dostinex has made me so emotional & easily irritable these last 2 weeks. Monday I start with my second dostinex package for the 2nd month.