My normal mothers day gift from Brainiac4 is that he takes the kids to visit his mother and I go see a schlocky romantic comedy and have lunch with mine - without children. Or I sit in the tub and read.
I also expect him to take the kids to the nursery and find some cute little garden gnome or bunny or something for the garden that the kids pick out so when they are teenagers I can say “see what you guys bought me when you were four! Isn’t it hideous!” But your baby is too little yet.
Most women I know, particular tired exhausted women of infants, look at this and see “he wants sex, ugh!” In my house, a slinky nightgown is a gift for Brainiac4 (he gets lingere in my size as a gift), comfy flannel jammies are a gift for me. There is also something ooky to a lot of women about mixing the notions of motherhood and sex. Yep, most of us got to mortherhood through sex, but a Mother’s Day gift is nominally from your kids - and who gives their mom slinky nightdresses.