To ask for reduced hours/job share

[BathshebaAndGabriel]

I went back to work full time 3 months ago (pretty full-on job that I really wanted), just at the same time my husband’s job moved to Frankfurt. He commutes there on a Sunday evening comes back on a Thursday evening or Friday morning.
We have 2 primary age children.

Am not coping very well with the increased hours. Domestic decline is very evident! And spend a lot of time at work thinking about handing my notice in.

WIBU to ask to reduce my hours or ask to do a job share even though I’ve only been in the job a short while?

No harm in asking. Could you suggest compressing to less days (5 into 4 or spread hours to allow 1 day off a fortnight) or work from home so they don't have to hire someone else and the job still gets done.
Any flexibility in DH days/hours?

You can always ask. It doesn't, however mean, your employer has to or will agree. And if they don't, there is next to nothing you can do about it because most company policies (even those, who strongly advocate flexible working) always say that availability of flexible working depends on business needs.

Thanks for your responses.
I will ask my manager. Nothing ventured, nothing gained.
I was so excited about starting the job and now I spend a lot of time day dreaming about the halcyon days of when I was a SAHM (be careful what you wish for!) 😂

Is you can afford to drop hours can you afford a cleaner to make life easier?

If you are in the UK then you have a legal right to request flexible work hours. Google and use the .gov.uk site. There are specific reasons a business can decline your request. I recommend raising it unofficially to hash out the details before you actually put in the request though. I've done it twice now, once to drop to part time and 2nd to change the agreed days I worked.

You can only put in 1 request every 12 months (rolling) and you have to have been in their employment for a minimum time.

Also, dropping hours isn't necessarily an affordability = cleaner trade off. I now actually have time to have some time to myself, full time meant 5 days at work then 2 full days of childcare due to DH shift patterns. Now I do Tues-Thurs, Mondays and Fridays I get school hours to do housestuff, go to the gym, visit my dad, etc without having to cram everything in after work or at the weekend. Unless we had an absolute need, I don't intend to go back full-time for the foreseeable future.