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Mumsnet has not checked the qualifications of anyone posting here. If you need help urgently or expert advice, please see our domestic violence webguide and/or relationships webguide. Many Mumsnetters experiencing domestic abuse have found this thread helpful: Listen up, everybody

Ex-H having baby with woman he has apparently been seeing for 3.5 weeks

274 replies

utterlygobsmackedrightnow · 19/11/2025 21:50

Here is the background:
Ex-H and I were together for 12 years – the last few years weren’t great. We had periods of relationship counselling a few times, the most recent being between July – November 2023, at which point we agreed the relationship was over. We continued to live together as though we were still a couple until summer 2024 as we didn’t want to negatively impact DD’s exams. H then moved out and DD and I stayed in the family home until June 2025 when we sold it and moved. Divorce has just gone through. DD off to uni. Everything has remained reasonably amicable and we share care of the family dogs so see each other for a quick dog handover most weeks and occasionally a cup of tea. I tried really hard to make our marriage work over the years but he never put the same degree of energy into this that I did – lots of conflict over mental and practical load, family time, him putting his needs, wants, hobbies, work etc. before everything else – the usual. (Should also mention that he is DD’s stepdad, not bio dad, been in her life since she was 4).

This week:
Ex-H drops off the dogs last Friday and stops for a chat. He mentions that he has started seeing someone and thought he should tell me – that’s fair enough, we’ve not been properly ‘together’ for 2 years really as we agreed to separate in November 2023, and I imagined it would happen at some point and am very happy to be single and free of him. Then he says he first met her though a work thing in September 2023, but wants to make it clear that they didn’t meet again or date until October 2025, just a few weeks ago. This seems to me like quite an odd thing to say – why would he need to say that? Hmmm. Spidey senses kind of tingling, but fine, whatever – it’s all the past now.

Today:
He drops off the dogs AND TELLS ME SHE IS PREGNANT AND THEY ARE HAVING A BABY. I express almost comedy levels of shocked surprise, followed by quite a lot of WTAF and does he seriously expect me to believe he is having a baby with someone he apparently didn’t date until the end of October??? He gets out his laptop to show me the email she sent him on 25th October asking him out for a coffee because he wants me to believe he is a decent man and telling me the truth. So let’s say that they went out for coffee 25 days ago, and had sex that day at the very earliest, she’s apparently pregnant now and they are both delighted???

This is insane, right? He genuinely expects me to believe that this has all happened since the 25th of October and that there was no relationship whatsoever between them previously. Does he think I am the stupidest woman in the world?

He’s 55, she’s 36. If they are actually having a baby, he’ll be 60 by the time it goes to primary school, and 74 when it goes to uni.

I don’t care about him meeting someone else, I sure as hell don’t want him – but I do care about the idea that there has probably been something going on since we were still together and he is lying to me though his teeth. I hate being lied to more than anything – it is treating someone like they are utterly stupid and beneath you. I hate the idea of completely losing trust in someone that I spent a long time with, and that is still part of my DD’s life. I am wondering if the bullshit cover story is actually because he doesn’t want my DD to hate and disrespect him, rather than giving a toss what I think of him. This is a man who really likes to think of himself as decent and honourable. There’s no chance this story is real, is there? It’s like the rational part of my brain can see it’s ridiculous and expecting me to believe it is quite frankly insulting my intelligence, but there’s another part that wants to believe in the ‘decent and honest man’ persona and can’t get my head around the idea that he has been lying to me for probably quite a long time, and is not the man I thought he was in any way, shape or form.

(BTW when I have ever read anything like this on MN I have suspected it was probably made up nonsense because it’s too ludicrous to be real, but this has actually happened to me this week, so I apologise to anyone I ever doubted because apparently this shit really does go on, in fairly normal people’s lives. And then I always wonder why people would immediately write about it on a random forum but I am still trying to process all of this and interested to hear what other women think, I guess.)

OP posts:
SingleSexSpacesInSchools · 19/11/2025 21:53

Why do you care what your ex is doing now or in the past. They are your ex for a reason.

youalright · 19/11/2025 21:54

SingleSexSpacesInSchools · 19/11/2025 21:53

Why do you care what your ex is doing now or in the past. They are your ex for a reason.

Because she has normal human emotions

IndigoIsMyFavouriteColour · 19/11/2025 21:56

He’s your ex. I wouldn’t give it much thought beyond feeling a bit sorry for him having to go through becoming a dad so late in life (as a 41 year old I can’t imagine anything worse than having another baby)

Sausagescanfly · 19/11/2025 21:56

It seems weird that he's spun such an implausible story. Wouldn't it have made more sense to have at least said September?

IsItSummerSoon · 19/11/2025 22:00

I would think exactly the same as you. I wouldn’t believe his story for a second. It’s just more likely he’s been seeing her for longer than he’s admitted to, rather than his version of events.

Arlanymor · 19/11/2025 22:00

The fact he first mentioned "Oh this was the date we met, but we don't do anything until this date" comment the first time and then the fact he had 'evidence' ready on his laptop (and he was dropping off his dogs, why did he have his laptop with him?) to show you, to 'prove' what he said the previous week. He's a lying shitbag and I am sorry, but well done for seeing through it. Yes his behaviour is reprehensible, patronising and hurtful. Thank fuck he is out of your life in any meaningful way. No one on the planet would be thrilled to be pregnant after dating for a month, neither male nor female, unless they were the dumbest and most reckless mollusc on the planet. I would take it as evidence that leaving him was the best thing you possibly could have done.

didwegotothesamewedding · 19/11/2025 22:01

My first thought was that if he’s telling the truth about when they started dating (big if), then it’s probably not his baby.

legalseagull · 19/11/2025 22:02

I don’t understand why you don’t believe him. Women get pregnant from one night stands so presumably they just had sex during the past few weeks. I’d be more suspicious about why he’s telling you when, by the timing, she must have only just found out herself and only be a few weeks pregnant? Why tell you so soon?

Pixieknowle · 19/11/2025 22:02

It’s bizarre the time periods as he could have just said a couple of months earlier if he was lying and it would be plausible?

but I agree this is not the true story, he wouldn’t tell you at 2 weeks pregnant so she must be 8 weeks at least

Im so sorry

CrazyGoatLady · 19/11/2025 22:02

Yeah, I mean odds are that he's lying and he had an affair but he wants to not be the bad guy here. It is possible I guess that there has been an emotional affair that genuinely didn't turn physical until recently. More likely it was a a long distance on/off thing that he broke off because he was feeling guilty/thought he should give the marriage a final try and has now rekindled post divorce.

You are better off without him, and sucks to be him becoming a new dad at his age with someone he likely doesn't know that well. He will reap what he has sown...

Arlanymor · 19/11/2025 22:02

SingleSexSpacesInSchools · 19/11/2025 21:53

Why do you care what your ex is doing now or in the past. They are your ex for a reason.

So you would have just shrugged, taken the dog leads and closed the door?

Bollocks would you. Of course it's a shock. And she's posting here to get some objective views because right now her mind is spinning because she's a human being. Doesn't mean she wants him back, doesn't mean she wants anything to do with his life now. But it is a bit bloody much to have a long relationship end and then his new squeeze is pregnant five minutes later...

PashaMinaMio · 19/11/2025 22:03

didwegotothesamewedding · 19/11/2025 22:01

My first thought was that if he’s telling the truth about when they started dating (big if), then it’s probably not his baby.

As above. ^^ My first thoughts too.

Dahliadaily · 19/11/2025 22:04

Who’s the baby’s Dad?

No seriously. I completely get where you’re coming from. It’s not the craziness, it’s the lying and being taken for a fool. I completely get that.

No advice other than to back away.
It’s very unlikely to end well. Not your circus, not your monkeys thank goodness.

it is a shame you share the dogs and you’ll have to endure his constant updates. It would be far better for you to cut ties.

MumoftwoNC · 19/11/2025 22:04

They must have DTD that very week and she happened to be in her fertile window. It's almost impossible. At 36 it's unlikely to conceive on the first try anyway (I also had my kids in my 30s so that's not a judgement just the sad truth).

They've been at it for months at the very least. Surely

Homegrownberries · 19/11/2025 22:05

Either he's lying to you or he's an idiot and she's lying to him. Actually, he's an idiot either way. Not your problem. Congratulations on divorcing him.

MumoftwoNC · 19/11/2025 22:05

Or the baby isn't his

JudgeBread · 19/11/2025 22:05

Just breathe and consider yourself very fortunate that you split.

You're probably right. He probably is lying to you. And I completely understand why that'd make you angry, he apparently thinks you're stupid, that's infuriating!

But he's not your problem anymore. You're free. Your daughter is spreading her wings and you have life, the universe and everything at your feet.

He has shitty nappies and sleepless nights to look forward to in his fifties. And probably a rude awakening when this new lady expects him to do all the things he wasn't doing in his relationship with you, but they'll have a newborn. Just... I know it's mean spirited but let yourself feel a teeny bit smug about that. Then carry on moving on from this dipshit exactly as you have been.

hungrypanda4 · 19/11/2025 22:06

You both have way too much contact for a divorced couple with no young children. The dog handovers sound like an excuse to stay in touch with each other or by the sound of it more so (I’m sorry, I know it’s harsh) for you to stay in touch with him.

Honestly, who cares. You left him and he’s making a new life for himself.

Marchintospring · 19/11/2025 22:07

Yeah he’s an absolute tool if he expects you to believe they only started a thing 4 weeks ago.

If she was pregnant after a session 4 weeks ago I doubt very much he would be telling you about it either. Unless it was to ask for advice.

It’s a really horrible feeling being lied to but I think it’s just part of the detachment process. Smile and tell him thank fuck women your age don’t need to worry about that anymore - walk off laughing.

Fiftyandme · 19/11/2025 22:08

You’ll never get the truth.

Don’t let him live rent free in your head

NovemberRedHolly · 19/11/2025 22:09

At 36 maybe she’s just used any man she can to get pregnant.

MillsMollsMands · 19/11/2025 22:10

Ahh this is like my dad who, the very week he left my mum, just happened to be at the theatre on a ‘first date’ with the woman he eventually married. He had worked with her a few years previously but nothing happened then apparently…

Silverbirchleaf · 19/11/2025 22:10

didwegotothesamewedding · 19/11/2025 22:01

My first thought was that if he’s telling the truth about when they started dating (big if), then it’s probably not his baby.

Yes me too. Either she’s lying that he’s the father, or he’s lying about the time history.

WinterHangingBasket · 19/11/2025 22:11

Either she is lying about who the father is. Or he is lying about how long the relationship has been going on.
Given everything you have said, I suspect it has been going on under the radar since they first met. He was happy to agree your marriage was over because he has the next one in the wings already. And now you are fully over and done, family home sold etc, he feel comfortable to launch it into the open. Probably with a healthy dose of 'what the fuck have I got myself into'. So many men think only in the moment, he probably never considered how careful their contraception was.

Sasha07 · 19/11/2025 22:11

My ex got someone pregnant within 2 months of me kicking him out. He hadn't even bothered to see our kids in that time (nor has he for the past 20 years or paid a penny towards them). I didn't want him back but it hurt so incredibly bad because it's likely he'd been sleeping with her in the last few weeks before we broke up.

But... Not our circus, not our monkeys. You're in shock now but just ride it out. There's nothing you can do and it's on him what he gets up to now. The pain doesn't last long but just give yourself time to let it absorb, you've just got to ride this wave until one day you won't feel it as strong, then soon after, you won't care about it at all.

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