A bit annoyed

I'm a stephmom of 3 dudes from my husband.

Visitation has changed over the years and there's been times where they have been a lot with us and times where they have been less.

I'm now 7 months pregnant and working fulltime from home and he's off work on and off a week. The kids come fri-tue and he's off in the week that he has them mo&tue but is working fulltime the week he gets them from their mom on fridays.

Now he's dissatisfied because I work dayshifts that are inconvenient for him (have to because of my pregnancy)

And he's the only one caring for the (his) kids.

I don't understand his dissatisfaction because even though they are his kids (doesn't matter but just factual) he had several weeks where he'd go to work on fridayevening, come home on saturdaymorning, sleep til saturdaynoon, I had to keep track of time, and the kids and keep them quiet because he was sleeping.. (oh did I mention I was also working nightshift so I was able to sleep maybe between 4:30am and 7am, or if I were lucky the kids would sleep until 9am) Only for him to having to go out directly after waking up..

He left me all by myself with the kids practically from fridayevening til sundaynoon.

And now he's nagging me because he has to care for the kids alone for 8 meager hours and I'm right here so he CAN actually go out and I can keep an eye on them for a short while..

And he actually does have a full nights sleep..

Can someone please help me understand?

Sorry for the long post..

I hope I make sense.. In my head it does.. But I was there irl so to me it makes sense 😅

~update

You guys are a bit harsh, he's not a bad dad, he's pretty involved with the kids, he's been out in certain weekends leaving me with the kids, true, but when he's here he's involved.

Eventually he worked it through the day just fine..

I think he never had a day alone with the kids since his divorce 6 years ago...

When we met he was living with his buddy.

If I for a second thought he wasn't a good dad I wouldn't be carrying his baby.

I think he was probably mainly overwhelmed because the kids can be a terrible handfull on a bad day because they've been spending more time with their mom lately and she's not exactly parent of the year.. Not trying to go too much into the details but kids need rules and guidance.