I have just returned to work and exclusivley breastfeed my LO who is 12 weeks. Pumping was going great at first but now instead of getting around 6-8 oz a pump (I usually pump 2-3 times during day while away from lO)- I am suddenly getting only 3-4. I was just away from her for one whole night, maybe that is it??? Any ideas on how to increase??? Really want to continue exclusively breastfeeding but I am out of excess milk and barely pumping enough for her daily needs- But my production is fine when feeding LO - Any help appreciated!!