Advice/Input? 37+1

Autumn • Expecting our first Jan 2018💙

Hey ladies! So I had an appt today, Dr. checked my cervix (1.5cm dialated, 50% effaced) this was at 9am, I am now having horrible cramps and tons of pelvic/back pressure, but the last 2 times I've wiped (over 2 hours in between) there's been brown (old blood I'm assuming) and pieces of my mucus plug. Is this normal for a cervical check? I had one done at 32 weeks due to cramping and had no issues after that one so I'm not sure.