Bloody show or irritated cervix? TMI

I had called and talked to my Dr. already just waiting for my husband to get home to go in. Just curious what you ladies think about it.. I went in for my 37 week appointment yesterday morning got checked out wasn't changed or anything from the last time still 1-2 cm and 60% I had some brown discharge from my last ob check my dr. said was normal, anyways this morning when I woke up I went to the bathroom when I wiped I had mucus and red blood. I went and layed back down but started having some cramping and backache, with my other pregnancies I've never had bloody discharge at all so this is new for me. Not sure if it's just an irritated cervix or my bloody show? Just waiting for my husband to get home to go in and get checked out.