Mucus Plug Concern

So I'm 36+3 today and so far I've lost 2 like, booger sized bits of mucus plug yesterday and early this morning. My concern is that they were a little on the green side. Still pretty clear, but like a green highlighter. I have an appt today for an NST to monitor babygirl's movements so I plan on mentioning it anyways to see if they need to squeeze me in to see a Dr. too. But doing some research ahead of time, I'm getting conflicting info (that's the internet for you) as to if it's a bad sign or if there's nothing to worry about. What do you guys think?