Skin tags?

Spec
This is a little gross. 
A few months ago I mentioned to my Doc that I seemed to have more skin tags, and he said it's completely normal due to extra blood flow in pregnancy. 
In the last week, I've had 3 go black and fall off. I'm not complaining because I was planning on getting them removed after bubs is here. 
Just wondering if it's normal or should I get it checked? They aren't sore and look fine.