Hey mama! Normal breathing for a 2-month-old is usually around 30-60 breaths per minute, pero kahit medyo mas mabilis or slower pa yan sometimes, okay lang, lalo na kung gumagalaw sila or nag-cry, though kung nakikita mo consistently na labas ang buntot or like, parang hirap talaga sila huminga, best to check with your pediatrician para peace of mind mo!