Pregnant with Periods?

So I still have the <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a> calendar to track my periods and technically my period would come today, but I’m 4 months pregnant.

I am spotting a little, very light pink color every few wipes. Is this normal since my period would come during this time, or should I be worried?