I feel so dumb 🙈 but I need help

Okay so this is my third baby, I’m 30 weeks tomorrow, and I’ve had horrible cramping on and off the last week. I drink so much water and try to stay off my feet as much as possible, it has been pretty hot where I’m at, so I’m trying to stay hydrated properly. But I’ve noticed when I’m cramping really bad I lose huge chunks of mucous. I don’t remember this ever happening with my two girls. My second pregnancy was rough about this time with my sciatic and lots of Braxton Hicks but never this much mucous. Baby is always moving so I’m not overly concerned with that, but this amount of cramping and mucous plug have me over thinking about preterm labor 😩 am I overreacting?