Loss of libido at 16 months postpartum

After i had my baby last year, i had a decent sex drive. Our sex life is has always been great, no issues. But for the last month and a half my sex drive has completely dipped and is almost non existent lately. i don’t crave sex like i used to and it’s not even anything to do with my husband or any problems, i just don’t feel anything! is it maybe because i’m dealing with a toddler or something? i’m a sahm with my child 24/7 with no help besides my husband, who is awesome but works so much. he never makes me feel bad for not wanting to have sex since he’s also kinda exhausted but i miss getting intimate. we haven’t had sex for a few weeks and the last times we did it, it didn’t feel like much for me. it’s like my libido is gone :( idk what to do but im frustrated because i want to enjoy sex. im not on any medication or anything either so im really confused. is this a normal thing postpartum? especially so far out?