Married but hurting, sad, lonely 😔

Can you/do you have sex with your husband/partner/significant other if you don’t feel emotionally connected to them? I do engage in sex with my husband but I haven’t felt emotionally connected to him for a long time.

Things are tough right now. Just had another baby & we have lots of unresolved issues in our almost 6 year marriage. Mostly about me feeling unsupported, unappreciated & as tho he doesn’t really have my back. Many times I feel alone & he doesn’t keep his word. Just very unreliable & Undependable. I push down my feelings a lot because we can’t seem to talk without WW3 breaking out & that’s not what I want our children to see/hear so I grin & bear it for weeks & weeks on end until I reach my boiling point & lash out & release all my pent up frustration. I know I’ve got work to do....he always just seems to make it all my fault. And when I ask for more time with me & the kids he always brings up the fact that he is the only one working & must pay the bills which I totally get. But he doesn’t even set aside time for us. He’s never once taken our 3 year old daughter to the park or just had like a daddy daughter day with her & she is crazy about her dad & is the biggest daddy’s girl ever! Now we have a son & I fear he won’t get what he needs from his father.....I’m just really worn down with it all😔