After bloody show

What do you do once this happens? Do you call your doctor? Hasn't happened to me yet I'm 37 weeks but I'm just curious. I asked my dr last appointment the protocol for when I should call him. He said other stuff about contractions and only if I see menstral like blood? I'm going to bring it up again next appointment. If I see blood of any kind I think I would freak out. Just wondering what you ladies did?