Will I be able to continue bf if I can't pump during work?

laf10

I'm home with LO until August when he'll be 4 months old. I love bfing and don't want to stop, but I'm a teacher and will only be able to pump maybe once a day, and that won't always be able to happen. I'm pumping now to save milk for him for the babysitter's, and I really want to be able to nurse him in the mornings and evenings after work. I don't seem to have any supply issues, as I can pump about 3 oz in the morning after the first feeding. I'm expecting to have to use some formula after my frozen stash runs out at the babysitter's, but I'm just wondering if my body will adapt to nursing only at night and in the morning if I can't pump much during the day. Anyone have any experience with this?