Lukasz had a doctors appointment today, and we found out that he is now 13.5 pounds (6.14 kg)!!! That puts him in the 55th percentile for weight. Also, he's 23.2 inches long (59 cm) which puts him in the 25th percentile. And his head circumference is 40 cm, which puts him in the 25th percentile.
He's definitely not as big as Lily was for her age at this time, but he's doing really, really well nonetheless.
We found out that he has an umbilical hernia, which is nothing too worry about right now as it doesn't cause him any pain and is not affecting his intestines. But if at two years of age it is still herniated, he'll have to have a small operation to fix it.
Lukasz also has 2 birthmarks. I'd found one, a cafe au lait spot, on the outside of his left thigh. Apparently the red mark on the inside half of his left eyelid is a "stork bite", another kind of birthmark. That one should get smaller over time. There is a small chance it could get bigger, but that is unlikely.