Hi I need advice as I am returning work soon. My 3 month+ baby boy is breastfed from birth till now. He was able to drink from bottle when he was smaller but since latching was much easier, I neglected the bottle feedings. Now he has been rejecting bottle ever since he hit the 3 months mark. We have tried different methods like changing many brands of bottles and teats and even warming up the teats but failed. I thought he was as easy as my daughter transitioning to bottle when I worked last time. As my mother is the caretaker to him, I even left him with her for 9h++ but he merely drank 30ml. Recently I got upset as she introduced my son to formula milk Similac without me knowing and he was able to accept it. I find it very upsetting as my milk supply is good therefore I am determined to fully breastfeed my baby. FYI, my daughter was also formula fed under her care. I know it's tough on her handling my son like that and she is trying her best with alternative methods. So now, should I still pump at work to maintain my milk production though my son will be on formula during the day, thereafter latch him when I come back home? Even if I pump at work, it will be a waste. Last time with my Daughter, I did not pump at work but my metabolism took a toll that I had bad acne. I do not want to repeat this phase again. Please help me.