Where did my sex drive go?

My partner and I have been together 3 years. We have a 15 month old son. Sometime during my pregnancy my sex drive just disappeared. I felt fat and disgusting. I had constant discharge every day and just didn't want to be touched. I thought it would get better after I gave birth.

We waited 8 weeks after birth to have sex. I didn't want to but we did it anyways. I still felt gross for other reasons - body image issues and my vagina was dry from breastfeeding and smelly. So unless it was right after a shower I wouldn't have sex. When we did I still didn't want to.

It's never my idea to have sex. If I had it my way he would fuck someone else. Two nights ago he asked me about my sex drive and if I even had one. I wasn't prepared for the conversation (or sober) so I just walked away. Yesterday we had sex (at his request) and I bawled my eyes out immediately after. I never cry in front of him.

I guess what I'm asking is...when does it come back? What can I do? I love the man very much and while there's things he can do differently to put me in the mood, the issue mainly falls on my shoulders. Is there a drug out there I can take? Has this happened to anyone else? I just want my relationship to go back to normal..