is it worth it to bf for only 3 ounces?

pregnantchick

My supply has diminished ever since I went back to work and also got sick.  I am currently nursing LO in the early morning and when I get home from work, but on both occasions, it seems like he is not getting enough and we often supplement with a bottle. I am pumping once a day at work and only get 3 to 3 1/2 ounces.  Is it worth it to keep this routine up? My DH is ready for me to quit.  I used to love nursing but it seems like LO prefers the bottle and gets frustrated/impatient when nursing now.