OP,
You sound so lovely OP.
This is a sad thread, because you sound so bullied.
You have been given some great advice and suggestions.
I mean this very kindly, but you sound very vulnerable to being in an abusive relationship.
Your partner sounds like a petulant, selfish bully, who doesn't seem to have much regard for you.
You have recently had a baby and you have a toddler.
Very little sleep, but are expected to cater for a huge crowd for many nights on next to no sleep.
You are very vulnerable to getting sick and depressed.
Please reach out to your family for support.
Your partner is not a good man.
He sounds awful.
Please mind your health and MH.
Your children need you.
Again, you sound so lovely and deserve so much better that him.
Sort your contraception and start putting money away.
With an excuse of a man like you have, it really would be wise.