Is this underweight?

My son was born at 7lbs 13.5oz and 22cm. He's 2 months old on Wednesday, and he was weighed on Friday at 10lbs 14oz and 57cm. That puts him at the 6th percentile for weight and 15th percentile for weight.
Oh, also the day after I got out of the hospital the nurse that came over weighed him at 7lbs 5oz.
Is he underweight? If I let him eat as much as he wants he just spits it up...

Nope he sounds fine. My daughter only weighed about that much at 2 months. If the doctors thought it was a concern they would have mentioned it

Okay, I was just concerned about the percentile being so low..

He sounds just fine to me. Some babies/kids are just smaller. My daughter is 2 and in the 1% for weight and 2% for height, but she has grown steadily, so there are no worries.

Sounds fine to me.
My DD will be 1 in 2 weeks and is 15lbs and 26 inches now she is small. Lol

my first was 7lb 14 oz born, and weighed about 11 lbs around 2 months old if I`m not mistaken. She`s 3 now and still below the average in height and weighs abot 30lbs now.