Mucous Plug - Freaking Out! No pic

Ok. Earlier I laid down due to that nagging abdominal pain that's usually common with menstruation. I've had it a few times now over the past few weeks. Anyways, I felt the urge to pee so I got up and there it was. Slick string my mucousy discharge. Not a lot but piece of it. And now there's pink in my urine. Is that part normal? It's been that way for the past hour and a half. Lite pink blood in my urine. Kinda freaking out here.... So responses would be appreciated. I'm tired of calling my on call about every little incident because I feel like an idiot. By the way... 37 Weeks 3 Days is where I'm at. And I know this can happen weeks before delivery. Just the bloody urine has me a bit concerned.