Mucus plus help!

Sydney • Advice, friendships, baby dust, & more✨

I am 37 weeks 3 days, 3 cm dilated, 90% effaced. So ive been loosing my plug in chunks for the last couple weeks and it kept rejuvenating. I had sex with my SO tonight and felt a sharp stabbing pain in my cervix then a HUGE amount of mucus plug leaked out while I was sitting down. I know it doesn’t necessarily mean labor is coming tonight but has anyone had experience with this and how long did labor come after?