I wouldn't worry because with my first child my mucus plug didn't come out until a couple hours before I gave birth
You probably haven't noticed you lost it I didn't notice with my first child and I only noticed this time because it came out on my toilet paper my Dr said it really doesn't matter touch because you just build up more
I'm 39 weeks today and still haven't lost mines either.
Im 38+1 and I'm the same. Wanna have this baby.(ready)