Masturbating.38 w 2 d

Kristen
I have been told that fingering yourself can help you dilate. So I figured why not give it a try. So I put on some doctor latex gloves and made sure they we're clean. I was sitting on the toilet because I figured it would be easier that way. So I started, and when I pulled my finger out there was a mucus looking discharge with blood in it. Now I'm worried that I went to far up or did something. I stopped immediately once I seen the blood. I'm 38 weeks and 2 days. Yesterday at 38 weeks and 1 day my doctor said I was dilated to a good 2 and 70% effaced. I'm just wondering if this has ever happened to anyone else???? Sorry if this is tmi.