Depending on which source you look at, the third trimester starts around week 27 or 28, and as we end December and get into January, we should all be hitting that magical week!
I can not believe I'm at week 27 already. This pregnancy seems to be moving at light speed all of the sudden! It seemed to be crawling along for so long, but not anymore! I'm feeling very overwhelmed with everything that needs to get done before this little guy makes his debut!