Measuring behind!

Laura
So my Dr has me a little worried yesterday. I went to the dr due to back pain and needing to get checked for a uti. Luckily everything came back good. Baby girls heart rate is nice and strong. BUT I have to get another ultrasound done next week because when she measured me she was only measuring at 22 weeks and I'm 27 weeks 3 days. My Dr is thinking its just the way she's sitting today because a few weeks ago she was measuring on time. So that's why she scheduled me a ultrasound just to take a look and to be on the safe side. Has anyone else measured this far behind and it's just the way the baby way sitting?? This is my third pregnancy and never had this happen before. I'm trying not to worry I just don't want nothing to be wrong with my baby girl.