Advice please

Hello guys! My husband and I have been together for 6 years with have two toddlers(4&3) and I'm currently pregnant with baby #3 due at the end of october. Here is my issue I've recently started working at amazon FC 4 days out the week from 9pm-6:30am while hubby works 6 days a week 8am-7pm with sunday being his only off day. I understand that he must be tired from working and only having 1 day off but he doesnt really help me that much. For example today sunday he let me catch up on sleep which I really love but he didn't cook breakfast for the girls he just gave them cereal. I could careless about myself but he didn't even bother to make them something simple like eggs or pancakes. It breaks my heart that the girls come into the room looking for me and ask me to prepare them something. Our 4yo still has to wear a diaper at night since she doesn't have full control of her bowel movement so when I woke up she still had her diaper on. He is an increible person but as a parent he lacks a lot. I still have a lot to learn but still try my best. He doesn't do dishes or bathe the girls unless I nag him enough but at that point I just end up doing it myself. Im terrified that after this baby is born is just going to get worse. I don't have any family at all the only person is my sister but shes 40minutes away and has a life on her own so I avoid bothering her all together. I've tried talking to him and he says he will help me more but its the same story everytime. I've come to accept the fact that I'm mostly solo parenting and he is on the sidelines being a spectator. I love him alot but this is messing up with my mental health big time.