Newborn Fever Temp?

Brittany

What is a concerning temperature for a 3 week old?

He has been throwing up about an hour or two after eating. He has been on the same formula since we brought him home, so I don’t think it’s that? But FTM could be wrong. He is in sensitive formula.

His temperature right now is in the 99 range, 99.4-99.8.

Thank you in advance! 😊