no sex drive...😒

Well, pregnancy has done wonders on me... including making me a sex crazed human being. My spouse on the other hand could not be more uninterested. Usually it is him making the,"I'm tired" excuse of the, "maybe in a bit". To top it off.... when he does work up the energy to have sex with me, it's the same. everytime. I have asked an he blames it on different things, stress ect... but honestly how does a person not start to take it personal. I'm adventurous in bed, I know that's not the problem. Am I the only one that's had this? Where they seem they are begging there spouse to have Sex with them... or maybe I should be worried it something else?