No sexual Desire

After I got pregnant and had my daughter, I have NO sexual Desire. Sometimes the thought of it makes my skin crawl.. I maybe have sex with my husband maybe at the most twice a month and I don’t want any pleasure just want it to be over with. We use to fuck like rabbits back in the day so I know this bothers him because all men are sex attics.. so he watches a lot of porn (which I Hate) but how could I tell him to stop when I ain’t giving up no ass.. smh anyway, any idea why my hormones have literally died? Anything a doctor can do?