Question for mommas who use bottles. 😌

Ashley🦋 • [Married]💍[Mommy] 👨‍👩‍👧‍👧 #girlmom [🇺🇲❤🇳🇮]

How did you know when to switch nipple sizes? My little girl is 2 months old and using size one, but sometimes she just sits there and chews on it, like it's not coming out fast enough, and then sometimes she drinks it really fast.

Thanks in advance! 😀