What color should CM be?

I’ve been having some Cervical Mucous for a while now that has a light greenish tinge to it. I expressed this to my OBGYN describing it to be similar to when you have an upper respiratory infection and blow your nose, that’s what it looks like. She didn’t seem concerned. At 36 weeks, I had my term studies which she said I was positive for Group B strep but didn’t say of any other infections. I asked her if she had saw the mucous up there and she said yes but wasn’t concerned. Of course google got me feeling worried that I may still have some kind of infection. I don’t see this mucous all the time. Just occasionally when I wipe. Mostly after having a bowel movement. There’s no itching or odor accompanied with it