just a curious question for other moms at 19 weeks!

I'm 19'5 days pregnant. The other day I went to my appointment for the anatomy scan. I was told my baby is 10 ounces. I have no concerns about that, just wondering if 9 or 10 ounces is the general range at 19 weeks of pregnancy. 
At 19 weeks is your baby 9/10 ounces?