At 33 weeks, my first (boy) measured roughly 5.5 pounds. He was 8 pound 4 ounces when he was born. These scans aren't always accurate. I've heard a lot of women who are told bub is big and is born at an average weight. Your bub still has plenty of time to grow. Usually they have a big growth spurt in the last few weeks.
thanks i was a little scared.
The baby center website growth chart says average weight for a 33 week baby is 4.23 pounds, and that your baby is the size of a 32 week baby, which is 3.75 pounds. Your baby is REALLY close to average.
Of more concern is your other post that states they've found a placental leak - indicating your baby isn't getting all that your placenta is delivering. The good news is, this has been discovered and is being monitored. If your baby in the future starts losing ground and isn't growing as well as expected, your baby can be delivered.
At 33 weeks + you can expect to look forward to a healthy baby! Best wishes, worrying is so hard.
With my little girl at 32 weeks they said she was 2 lb 2oz and she was 7lb 0oz when she was born..