Breastfeeding to bottle feeding

Hello all! I am expecting my first child and will be returning to work after about it 6 weeks, barring any complications... I intend on breastfeeding up until then, and then switched by to formula after that. Unfortunately my job makes pumping during the workday unrealistic. Does anyone having any tips on how to make the transition? Or is it possible to go 8 hours without pumping and continue to breast feed? This would be my preference, but from what I am reading it doesn’t seem possible. Thanks so much for any advice!! I need all the help I can get 😆