teats ... when do i change if doing ok on newborn teat?

[[M]umma[M]ia]

DD was on the newborn teats till about 3 months old. You will know she needs a faster flow when her cheeks suck in when shes drinking and she starts fussing because shes not getting the milk fast enough. HTH

[Party-of-five]

ive just changed DD's to medium and she is 14 weeks...she was getting frustrated with the newborn ones