Hi mommies! Today I had my 20 week scan (I'm 20 weeks, 3 days) and my baby is measuring about 2 weeks behind. Everything looks normal and healthy, and he was super wiggly and active with a heart rate of 146. I am positive of when I conceived, but the sonographer said she thinks my doctor will push my due date from March 5th to the 16th. I don't see my doctor for another 2 weeks. Has this happened to anyone?