Third trimester pink spotting

Sara • First Time Mama🤱😍 Mermaid at heart🧜‍♀️❤ Chandler Bing is my spirit animal😆🐾

I had some brown discharge last weekend, but it stopped after a day. When I did my urine sample 2 days ago at my appt I noticed more brown discharge and I've had pinkish spotting ever since. No cervical exam. I am a little over 37 weeks. Is this just due to slight dilation, or could it be the start of losing my mucus plug? Just wondering if labor is imminent or if I shouldn't worry about it.

I'm unsure if I've had any contractions, I cannot say for certain.