Sorry I know nothing about pump classes just though I'd add something about you not wanting another 11pound baby. With my first my Dr told me to go off sugar as my glucose levels were high - he said eating fat will make you fat eating sugar will make the baby fat! He was worried my baby would be huge, 8 weeks later and almost no sugar he was born at 7 pound 11oz. With my second I had no trouble with me glucose levels so didn't go off the sugar she was 8 pound 7. Needless to say I'll be going easy on the sugar for the last few months. Not sure it would work for you just thought I'd add my experience. Good luck with everything!