Pumping

This is all I could get from pumping one session today. I would like to increase my supply and have more to add to my freezer stash for when I go back to work. What can I do? How often should I be pumping every day to increase it?

**also I am breastfeeding my 7 week old and trying to squeeze in my pumping sessions between direct latch. Sometimes after I pump my baby gets really fussy the next time I try to nurse her and I end up having to feed her what I just pumped.