Spotting or bleeding?

I miscarried in July. I bled heavily for a week. I had a normal period starting august 14th. We tried again and I tested positive on Friday. I have been super nauseous (I knew before I tested!) and my boobs are finally sore as of yesterday.

A few days ago I started spotting yellow/pink/white (barely any!) and tonight I wiped and found this. All this to ask, has anyone experienced this after a recent miscarriage and it was nothing? This is what the bleeding started like during my previous miscarriage. I am so worried.