Is this normal? 39w+1

Okay so I have been losing my mucus plug since yesterday in pieces. I've lost pieces of it all throughout my pregnancy but these are bigger and more frequent pieces (none have ever had blood just snot-like mucus). Anyways ever since waking up this morning I have had period cramps all day. They hurt but don't seem to have gotten much worse over time, some are worse than others though no doubt. I've had to put a pad on because I've had my plug coming out every two seconds it feels like. It was really yellow and became less snot like. It still looks like mucus just it's spread out more as opposed to globs. Sometimes it feels like there's really liquidy discharge and now it's become pink. I have had these period cramps for 14 hours and counting. Now I'm starting to feel the pain in my hips as well. I had a doctors appointment today but since I told him baby girl hasn't moved all day he was more concerned about sending me for an ultrasound and said nothing about the pains I've been having today.. Is this normal or should I be considering going to the hospital?