Probably means your baby is still very small or that your uterus isn't expanding like it should.

Keep us updated.

Don't worry about it at all hun! The same thing happened to me. I was 10 weeks, and only measuring 6 weeks. They gave me and ultrasounds snd the baby was fine and they pushed my due date back a whole day! Lol.....But my whole pregnancy I was measuring about 4 weeks too small. When I was 35 weeks, I should have been measuring about 35 cm, but I was only 31, so they gave me another u/s and again he was fine. I had a small belly my whole pregnancy and my son came out weighing 7 pounds, 14 ounces and he was 20 3/4 inches long! So don't even worry about it hun, i'm sure the baby is just fine! Let me know if I can help ya!