No sex drive postpartum

Hey guys!

I just hit one year post partum and I still don’t really have a sex drive. I do still have sex with my husband to make him happy but I don’t ever get horny anymore really. I don’t even masturbate. I am still breastfeeding. And I’m the main caretaker of our baby. Which at one year old he still does not sleep through the night and I am very sleep deprived! My husband is getting upset with the fact that I’m not as “wild” as I used to be and horny ever. I feel bad but he doesn’t believe me that other women are 1 year pp and don’t have a sex drive still as well! I think the breast feeding has a lot to do with it and that I’m stressed all the time. My husband and I have been fighting more as well. Idk I’m confused and a little lost!! Is there any one else out there who is in my shoes lol. I wish he would be a little more understanding (Everytime he asks for sex I give it)