1stbub - Mia cracks it ALOT at my right breast. Its bigger than my left and when its full she cant latch on properly and keeps pulling herself off. This might be why. Once bubs got a good mouthful of breast, u will find he will stay on there.. Just keep pulling him off and putting him back on, shape your nipple a little bit (with thunb and index finger) to help him get a good mouthful. HTH