My daughter is 3 1/2 weeks old. Today is full of mixed emotions. She has moved on to size 1 diapers and she wore her last newborn size diaper. Breastfeeding has been a huge struggle for both of us. It's best for both of us to work towards formula feeding. Today I nursed my baby for the last time. I feel like my body has failed her but as long as she is being fed, that's what's important. I always thought breastfeeding would be easy because it's natural. I never knew how hard it would be.