28 week appointment

I had my 28 week appointment this morning. I got there early, drank the lovely orange drink - which really wasn't that bad if you ignore the after taste - and then went up to my appt. I thought for sure I was going to have to leave to get the blood work done because the doctor was running so late. She came in right when I decided I had to leave! So, I figured it shouldn't take too long. She did the fundal height measurement right away and I measured at 26 1/2 weeks. She measured again... and then again with a puzzled look. She said it's somewhere between 26 1/2 and 27 weeks. They won't be concerned until it is 2 weeks behind. I am pretty sure she was a little worried. She then listened for baby's heartrate. And found it (I could tell right away) and then checked to make sure she wasn't listening to my heart - not sure if the number wasn't reading on the doppler. But it made me even more concerned because I felt like she was worried that baby wasn't going to have a heartbeat. But she said she'd see me in 2 weeks, and I took off for the lab so I made it in the hour. I made it within seconds. So, hopefully my belly will catch up to where it is supposed to be or I get an ultrasound for peace of mind next time...