Miscarriage at maybe 4 weeks

Gl

I recently found out I was pregnant (last Saturday) and Monday I started spotting (only when I wiped) I went to the ER Tuesday and had a ultrasound and they said it was too early to see anything. I was diagnosed as a threatened mc and my levels were low. But I have no pain and my spotting hasn't gotten worse and i haven't passed any clots... anyone experienced this?