Mucus plug, labor near?

I am 36+2 weeks. I’ve been losing my mucus plug for 3 days now, and I mean like chunks of it. Last Tuesday I was checked and I was almost 2 cm dilated and 50% effaced, my doctor was able to feel babies head. About an hour ago I went to the bathroom, my stomach wasn’t hurting or anything, and I had extreme diarrhea, TMI lol. Now I’m having A LOT of pressure, it feels like I had to poop but I can’t poop now. And I feels like I have to pee but there’s no pee to pee out lol. I’m just wondering if maybe labor is near? I’m still preterm so I’m very nervous.