Weight concerned ?

Jenny • JJ 💙 👼👼👼👼

My son just turn 7 months today he went on Friday to his 6 month check up and last round of vaccinations. All this virus thing made his appointment pushed later. He got his weight checked his 17lbs 1 ounce. A different pediatrician it’s kinda concerned his under weight .( his pediatrician ashore busy) He eats. purés and milk so I don’t know if his weight is bad. They took his blood test to see if his not anemic or something. His test came back good should I worry. I do feed him 1 jar of gerber that’s the only thing his taking. If I try to feed him more he will throw it up. Should I worry? how much are your little one weight?