Back to work and pumping

Jess • Mom of 3 with the 4th on the way! I am also a middle and junior high teacher :-)
My baby boy is 11 weeks today. I went back to work last week and am pumping twice while there. My husband brings my babe to me at about 3pm so I can feed him and not pump then. My nipples are REALLY sore from the increase in pumping. Any suggestions on how to lessen the pain? Maybe it will just get better? P.s. I hate pumping! I miss my baby 😞