I wouldnt worry too much over it, buy a vibrator and quit begging for it every night he will come around.
I had very much the same problem during my pregnancy and post partum. We had a great sex life and then I got pregnant and I completly lost my desire. My doc said it was bc I was pregnant, most women have sex for the pure SUBconscious desire to be pregnant and now that I was subconsciously I felt there was no point to have more sex. He said women are hardwired that way and it effects some more than others. My husband was hurting the whole pregnancy bc I didnt want to have sex. I assured him that once these hormones are gone id be horny again.
Baby came, and I still wasnt horny. I still blamed it on hormones and my 3rd degree episiotomy...but now that Remi is almost 6 months old, I still dont have much desire to have sex. Im out of excuses, Idk what my problem was, I used to wanna fuck like a bunny rabbit and now im more like "ugh, alright climb on.."...Feels more like an obligation. No fault of my husbands though, hes a fantastic lover and once we get going im always glad i "caved in"...
Im hoping its just a phase...I hope so for your husband too...Dont be too hard on him, feelings like this are confusing and hard to explain. Im sure hes hurting about it too. I know I feel extremely guilty for not wanting to have sex. But its a two way street. While you feel like hes not caring about your needs im sure he feels like your not respecting his feelings...
I do know one thing, begging makes it worse. I know the minute I finally got Phil to stop nagging me about sex, i suddenly had the urge to do it. Turns out I like to be the instigator...
But even with that helping a little, my drive is still very low and I dont know why.
Sorry this was all about me, i was just hoping to give you a birds eye view from the other spectrum...Its hard on the non horny too...