yes you can produce enough, but it will take a while to re-establish your full supply. you'd be better just bf though to improve your supply, especially if you love bf. i'd say ditch the formula if you can, he's probably just habing a growth spurt, and once your supply is back up, will start feeding a bit less often and for less time. if you mix feed, i think it's really easy to slip into mainly or fully ff. i speak from expreience with ds1, and i wish i'd had more support to fully bf for longer. i bf him for about 3 / 4 months, but think the ff was quicker for him to drink and my mum kept saying, i think he needs a bottle love, he's a really hungry baby. she was only trying to help, but it wasn't the best support in the world.