Just had baby #3. She's almost 6 weeks now. I breastfed my first two 6 and 8 months. Anyway, long story short. For the past week my baby has been more fussy lately and my nipples have been sore. I noticed my nipples are getting smaller too. I pump once every other day to start freezing milk for when I need to be out and about without baby. My nipples do extend at that moment but it only lasts for like 15 mins :( and I notice my baby does enjoy her bottle a lot more.