Breast feeding and pumping

Bre • Had our first baby in January 💖

How do you do both? My baby is 5 weeks old and I’ve been thinking about trying to bottle feed as well. Do you pump on the opposite side while baby is eating? Did this cause an over production? Did you do it every time baby eats? How do you keep storing the milk...I know you can’t add warm milk to cold milk so how are you suppose to get a bag full enough to put in the freezer?