Help! 17w4d is this the mucus plug? TMI Should i be worried?

Da

I don't have any bleeding or contractions. But this morning when I was peeing it came out in a gush, now I've been peeing a lot more lately which I know is normal, but then I found this when getting ready to take a shower. Never had anything like it with baby #1 but I did have premature labor issues. Is this just discharge or do I need to be seen? Thanks ladies!