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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

AIBU to refuse looking after my sister's child during her honeymoon?

616 replies

NotHappyFamilies · 14/07/2026 21:37

My sister is getting married in just over 2 weeks. I have helped her to organise her wedding and looked after her child when she has been to appointments and had wedding things to sort out. It’s a big wedding, she’s found it all quite stressful so I have done what I can to help.

I have booked 2 weeks off after her wedding because I feel like I need the rest after all the stress and I have leave to use. My husband and I are going away for 2 nights but we plan to chill out at home, get some things done around the house, go out for meals, have an evening at the theatre and just spend some time together.

My sister wasn’t planning on a honeymoon but her in-laws have just gifted them 2 weeks at their holiday home. Her partner was aware but it was a surprise to my sister until over the weekend when they told her.

We presumed they would take their child with them but yesterday they asked if we would have her when they’re away so they get a proper honeymoon. I must have looked horrified as my sister said maybe in-laws could have her for one week so could we just have her for one week.

I have said no as my husband and I also want to spend time together. My sisters child is 8 and although she is lovely, we’ll have to entertain her. Our children are older so don’t require looking after and we have had a stressful few months with GCSEs and the wedding prep. We just want to relax. My husband has also said absolutely no way.

My sisters in laws have contacted me to say that we can sort this between us and let my sister and new husband have a lovely honeymoon.

Are we being unreasonable?

OP posts:
SheilaFentiman · Yesterday 07:45

JMSA · Yesterday 07:42

I don’t understand how it can be that tiring helping your sister with her wedding.

Again, read all the OP’s posts - she has a lot more going on.

In any case, we all get 5 weeks or so of annual leave as downtime from work. Having someone volunteer us (and the rest of our family) for childcare duties whilst they go on holiday during one of those weeks is selfish, whatever else is happening in our lives.

wishingonastar101 · Yesterday 07:46

who leaves their 8 year old for 2 weeks!

Cavalierorwhat · Yesterday 07:46

What a joyous wedding it’s going to be for the little girl whose parents are disappearing for 2 weeks afterwards. All the plans for the one big day and then nothing special afterwards for her.
I suspect in-laws and sis have lost sight of her in all this. They’ve put OP in a difficult position as all her help in the planning will be forgotten if she, quite rightly, now prioritises herself and her own family.
I would have a heart to heart with sis and try to encourage her to take her daughter on holiday.

Notonthestairs · Yesterday 07:47

JMSA · Yesterday 07:42

I don’t understand how it can be that tiring helping your sister with her wedding.

She hasn’t taken any annual leave since Christmas. She has caring responsibilities for elderly relatives, teenage kids and a full time job.

Why shouldn’t she want a holiday of her own?

Why is her sisters holiday more important?

Lifestooshort71 · Yesterday 07:48

YANBU. If you took out the bit in your OP about being exhausted after someone else's wedding, you'd have got less stick. You work full time and have gone through GCSEs (good luck!) and want some down time with your husband. A couple with a child aren't having a honeymoon, they're having a holiday to celebrate their wedding and it seems odd that she wants to leave her daughter with someone else for 2 weeks. She's being a cf and needs to accept she's not some ingénue, blushing bride. Just say, can't do it, got plans.

GordanoServices · Yesterday 07:48

If her partner was aware, why on earth didn’t he plan for the childcare? Presumably it’s his child @NotHappyFamilies? very poor on his part.
ETA .. sorry just saw he was expecting the child to go with them…

PollyBell · Yesterday 07:49

GordanoServices · Yesterday 07:48

If her partner was aware, why on earth didn’t he plan for the childcare? Presumably it’s his child @NotHappyFamilies? very poor on his part.
ETA .. sorry just saw he was expecting the child to go with them…

Edited

Why would he? he thought the child was going with them

SheilaFentiman · Yesterday 07:49

GordanoServices · Yesterday 07:48

If her partner was aware, why on earth didn’t he plan for the childcare? Presumably it’s his child @NotHappyFamilies? very poor on his part.
ETA .. sorry just saw he was expecting the child to go with them…

Edited

As per the OP’s posts, her BIL was expecting to take their DD

99bottlesofkombucha · Yesterday 07:52

NotHappyFamilies · 14/07/2026 22:18

We would do a couple of days but no more. My sisters in-laws run their own business and that isn’t enough. They want us to do at least a week which we’re not going to.

I think they should have been doing some of the extra childcare pre wedding then, as it was all on you and now you’re exhausted. The groom is an idiot.

its kind of you to offer to do some of the two weeks and I appreciate your work constraints. You don’t seem to appreciate that I have been doing considerable time looking after x as support for dsis leading up to the wedding, and juggling my work around that with late nights and then also playing a big role in wedding prep, it’s been a huge load. I’m exhausted. I’m sorry it’s turned out like this, and I want dsis to have a wonderful honeymoon, but I don’t have anything left in the tank. To make this work I needed to have been asked much earlier so I could communicate the amount of babysitting and wedding prep I could fit in and also do a week after the wedding. A weeks childcare is a huge ask and I’m frustrated nobody thought about this earlier or perhaps assumed I can just take on whatever people want me to do.

PollyBell · Yesterday 07:54

99bottlesofkombucha · Yesterday 07:52

I think they should have been doing some of the extra childcare pre wedding then, as it was all on you and now you’re exhausted. The groom is an idiot.

its kind of you to offer to do some of the two weeks and I appreciate your work constraints. You don’t seem to appreciate that I have been doing considerable time looking after x as support for dsis leading up to the wedding, and juggling my work around that with late nights and then also playing a big role in wedding prep, it’s been a huge load. I’m exhausted. I’m sorry it’s turned out like this, and I want dsis to have a wonderful honeymoon, but I don’t have anything left in the tank. To make this work I needed to have been asked much earlier so I could communicate the amount of babysitting and wedding prep I could fit in and also do a week after the wedding. A weeks childcare is a huge ask and I’m frustrated nobody thought about this earlier or perhaps assumed I can just take on whatever people want me to do.

Why is the groom an idiot what has he done wrong? he assumed the child was going with them?

would be good to hear what his issue is then?

Sausageplait · Yesterday 07:55

The groom expected to take her and its her mother who doesnt want to. The in laws were not being presumptuous in expecting the OP to look after the child because they didnt think that would be the case. I suspect with their DiL not wanting to take her child they have been forced into trying to find a solution..
This is completely down to your sister.
She needs to take her child on the family holiday that has been gifted. She is extremely lucky to have been given that.
If she wants a "honeymoon" she can sort out two days away and ask someone to have her child then.
As someone else has said poor little girl.

Dontevenlookatme · Yesterday 07:56

I wouldn’t discuss with your sister to be honest. I would tell her not to worry you’ll talk to the in laws and then make it plain to them that you are fully committed for that fortnight and can’t help.

SheilaFentiman · Yesterday 07:56

@99bottlesofkombucha that’s far too long an explanation as ILs or Sis will just push back on parts of it.

”I’ve booked leave to spend time with DH and DCs after their exams, and it is important to
our family” is fine.

GotALionInMyPocket · Yesterday 07:58

Leeds2 · 14/07/2026 21:47

I would help my sister out in these circumstances, but I don’t think YABU by saying no. Your relationship with your sister may never recover though.

This.

SheilaFentiman · Yesterday 08:00

GotALionInMyPocket · Yesterday 07:58

This.

Her relationship with her DH and DCs may similarly never recover if she has her DNiece for a week when they were all expecting family downtime.

FoldItIn · Yesterday 08:05

JMSA · Yesterday 07:42

I don’t understand how it can be that tiring helping your sister with her wedding.

Brides dress, hen do organising and buying all the crap that entails, decorations (procuring, making then setting up) wedding favours, sorting out the venue (looking round them), catering.
Helping the bride in the lead up the week before, making sure the venue is ok, decorated if DIYing it. Making sure everything runs smoothly on the day.
On top of a full time job and caring responsibilities.
Currently helping a friend in similar circumstances, I am shattered.

Edited to add, it's the time consuming table decorations that are flooring me, though I am just doing an hour a night at the mo.

Gardenandseawitch · Yesterday 08:09

You have done more than enough already to support your sister.

The in-laws should the ones providing child care in this scenario.

Enjoy your holiday!

Rpop · Yesterday 08:09

Milaomilao · 14/07/2026 21:46

You dont sound close to your sister. The wedding stressed you, and her "child" is actually your niece or nephew. Words matter. You sound like they're the neighbours kids. So you arent close to him or her either. Tbh you dont sound like a close family at all from how you describe it 😂
maybe there are some unresolved issues? Assuming no health issues etc with the niece or nephew or yourselves, typically that'd be a great gift to your sister.
I absolutely love mine and my sister so it wouldn't even be a question for me to look after them, that'd be a gift to me! If they're such a nuisance to you then don't do it of course but I guess also accept this isn't typically what a close knit family would do...

Absolutely not true. People have their own needs and they can still love and be close to other people. OP you sound like you also need a well earned break, as does your husband. Please protect your time - you sounds like you need it.

DuckyDuckDucky · Yesterday 08:13

I think a compromise is what’s needed here. Your niece could spend a week with her grandparents and a week on holiday with her own parents! It’s perfectly possible for someone to fly back to pick her up.

Enjoy your time off op.

RunningJo · Yesterday 08:13

THisbackwithavengeance · Yesterday 07:03

Wow. You and your DH sound very mean minded.

Most normal, family orientated people would have agreed like a shot. They’d be happy to.

You reap what you sow in life.

Really? The OP has a very full busy life and booked this time off for some rest and time with her husband.
Why should she change her plans just because someone else doesn’t want to change theirs and include their own daughter in a holiday?

OP, I'm with you, I love my nieces and nephews but if I’d have booked a week off and had some plans I wouldn’t change them for something so trivial as their own Mum not wanting to take them on holiday, an emergency, yes but this, no.

Rpop · Yesterday 08:14

CKN · 14/07/2026 21:55

I think the word Shattered is an over exaggeration on your part. Why would you be shattered helping with your sisters wedding and need two weeks off.

Each to their own but I’d try to reach a compromise with your sister about looking after your niece and as others have suggested maybe her in-laws can mind her for a week and you take her the other week.

FFS. She is saying she is knackered. She has her own children and her own life and her own worries. She sounds like she also needs a two week holiday.

Hotandpointy · Yesterday 08:14

Diamond7272 · 14/07/2026 23:05

Yes, mother Theresa...

Be careful not to get your catholic cross lodged anywhere delicate :)

Grin No one’s accused me of religion before! Grin

I just wanted a decent honeymoon where I could relax so I did it before I planned a child and didn’t expect other people to watch my kid.

Notonthestairs · Yesterday 08:15

DuckyDuckDucky · Yesterday 08:13

I think a compromise is what’s needed here. Your niece could spend a week with her grandparents and a week on holiday with her own parents! It’s perfectly possible for someone to fly back to pick her up.

Enjoy your time off op.

Given the wedding is in a fortnight and therefore the honeymoon is in the middle of the school holidays, I am surprised that the Bride won't take her child with her.

FrenchBunionSoup · Yesterday 08:16

wishingonastar101 · Yesterday 07:46

who leaves their 8 year old for 2 weeks!

Yes, I don't want to sound judgy, but unless this is an extremely unusual 8-year-old they'll struggle IMO with being away from both parents for so long. And OP says this isn't the first time she has been left for 2 weeks either. A few days they can cope, but 2 weeks is another matter.

So even setting aside OP's tiredness and using up her annual leave to do childcare etc., I don't think the sister's approach is healthy and I wouldn't want to enable it.

VivInLiverpool · Yesterday 08:16

NotHappyFamilies · 14/07/2026 21:37

My sister is getting married in just over 2 weeks. I have helped her to organise her wedding and looked after her child when she has been to appointments and had wedding things to sort out. It’s a big wedding, she’s found it all quite stressful so I have done what I can to help.

I have booked 2 weeks off after her wedding because I feel like I need the rest after all the stress and I have leave to use. My husband and I are going away for 2 nights but we plan to chill out at home, get some things done around the house, go out for meals, have an evening at the theatre and just spend some time together.

My sister wasn’t planning on a honeymoon but her in-laws have just gifted them 2 weeks at their holiday home. Her partner was aware but it was a surprise to my sister until over the weekend when they told her.

We presumed they would take their child with them but yesterday they asked if we would have her when they’re away so they get a proper honeymoon. I must have looked horrified as my sister said maybe in-laws could have her for one week so could we just have her for one week.

I have said no as my husband and I also want to spend time together. My sisters child is 8 and although she is lovely, we’ll have to entertain her. Our children are older so don’t require looking after and we have had a stressful few months with GCSEs and the wedding prep. We just want to relax. My husband has also said absolutely no way.

My sisters in laws have contacted me to say that we can sort this between us and let my sister and new husband have a lovely honeymoon.

Are we being unreasonable?

Since when did other adult's children become your responsibility? Your hubby is right, it's a no.

And, it is very curious they would even choose not to take a three-year old with them? For a whole week? What is going on there? The child is not part of the nucleus family?
Edited: Sorry, just noticed, it's an eight-year old?

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