returning to work

I'll be returning to work in a few weeks and plan on pumping to continue breast feeding for at least a year. I did this with my son five years ago but it was extremely stressful and I was constantly stressing about my supply and keeping up with his needs. I want to avoid the stress this time around and I have been pumping every day after my lo's morning feed. I have been getting between 5 and 7 ounces with this pump and I am happy about that. My question is for the last two weeks before I return to work should I try to pump after ever feed to really beef up my supply? Or would this be unnecessary?