Discharge

I went to the doctor two days ago, she did a pelvic exam and said my cervix was very sensitive and while she was doing her swab a little spot started to bleed. She said she put some liquid bandaid on it. She told me don't freak out, that later that day I would probably have some brown discharge. (Old blood) I didn't that day, which was Tuesday but I did Wednesday and still today Thursday its still present. I'm
Overly concerned being pregnant with twins and having had two miscarriages. Any other moms had this problem? I'm just concerned it is happening these last couple of days and not the day she swabbed me.