Curious..

So my due date is January 14th, but do you think I'll have my son way before then he's measuring ahead a couple days, last time I got checked was at my 26week scan and my uterus or whatever it is they measure was measuring 27cm and im 28 weeks and a day now! I have this feeling hell come sometime in december? But I don't think my ob would make me wait after 38 weeks!

I'm low risk and have never had any health issues whatsoever! So im just curious what yalls thoughts would be?