sex, breastfeeding & sleep

So ok ladies... is there something wrong with me??? Use to love sex be crazy hot and wild. Hit 5/6 month in pregnancy and it stopped. Not as bad as now. Now she's 12 weeks old I'm breastfeeding and back to work. Sex drive lol none! Don't even fantasize about it, can't get wet. And if I do it's not like it use to. My husband doesn't understand and he's getting irritable. I know it's hormones breastfeeding ext... anyone else having this problem???