Normal?!!?

Allura

I’m 35 weeks, for the past 2 days I’ve been having some thick snot like discharge. There’s no blood, but I’ve never had discharge like this. Could that be my part of my mucus plug? Also I’ve been having period like cramps, not round ligament pain, I only get that on my right side and it feels like a Charlie horse. But I get bad period cramping below my stomach. & lately I’ve been feeling so achy, also kinda like I have an upset tummy?