Spotting or something more?

I had a cervical check yesterday around 10:30 because I was having some irregular contractions. Doctor said I was 1cm, 50% effaced and baby was at -2 station. She said I may experience some spotting from the check. Contractions got extremely painful when I got home but calmed down with some rest. I had no spotting yesterday but just went to the bathroom and got this. Is this what she meant or should I call the office?