Can pumping cause nausea? My daughter is almost 15 weeks. Twice in the last week either while I’ve been pumping or right after I’ve felt so nauseous that I started dry heaving. Could it be from the pumping? Is that a thing? I know I’m not pregnant because I took a test and it was negative and then I got my period on Sunday. This is so distressing to me because I have a phobia of throwing up and Idn if it’s from pumping or if it’s something I need to see the dr about if it keeps happening.