The mucus plug is more greenish, and my experience was I lost it for weeks. It regenerates and isn't a sign of labor. Now when you get a bunch of the mucus with blood tinge too it then it's most likely gor time for you soon. I know this is really common to say. But drink more water. I was drinking what I felt like a lot and when I went into LD they did 2 IV bags to hydrate me and my cramping stopped pretty quick.
It could be, I would call OB I had my second born at 36 weeks. So you never know.
Call the OB it looks like the August plug cause mine was that color
I'd say it's just discharge. You can also lose mucus plug for weeks before going into labour.