I’m still off and dreading going back as I’m sooo exhausted atm I can’t imagine how it will be when I’m back. My partner is amazing tho and does a lot of the housework and will cook several nights a week. Thankfully she works part time as will be taking the main carer duties once I’m back from maternity as I earn more per hour
Just because he's working 5 days a week doesn't mean he shouldn't be helping. Does he do anything at all? You're not failing at all. Your partner can't expect you to literally do it all.
Even if you're only working part time, the days you're off I'm assuming you have the baby so that's not a day off! I'm not back at work yet but I can just about manage to do lunch the washing up (sometimes) and maybe 1 load of washing a week during the day but everything else we split between us or do together! Typically I cook dinner then he does the washing up and tidies up while I do bedtime. I'll take my boy for a walk while he vacuums and then we split the kitchen when I get back and he dusts while I do the bathrooms.