Brown discharge?

Today I had the worst obgyn check up. I felt so violated. No ultrasound no introduction. Doc came in told me to lay down touched my breast touched my neck and then told me to lay down and used some prehistoric clamps to check my V part. After all that later tonight I started having brown discharge. Is it normal? I had a miscarriage of twins in Dec. I'm pregnant I'm 6 weeks 4 days. This is what they used