I’m just interested- I don’t think I’ve ever seen a thread where the poster is disappointed at having a girl.
I have, although it’s not hugely common. I think that’s because it’s a female dominated site. I know a lot of my friends partners have a strong preference for boys after a girl first time.
Surely there’s always a 50/50 chance of either sex.
If your odds of winning the lottery was 1 in 2, you’d probably go for it. Probably a bad example but there’s a good chance you’ll get what you ‘want.’
I post this as the mother of two boys so maybe there’s something I’m missing. Im not trying to be goady - I’m genuinely curious.
i struggled with infertility and after successful ivf I was just so thrilled to be having a baby I really didn’t mind what sex I had.
The opposite is often true for babies conceived after some difficulty. There’s some research on it, I will try to find it.
Further ivf attempts failed so we went through the adoption process and the social worker asked us if we would like a girl as we already had a boy - she thought a girl would make our family complete - I told her that I just wanted a second child to complete our family, to be a sibling to our son. I couldn’t understand deciding on a second child but only wanting a particular sex.
Again though, this isn’t really what happens in the wild so to speak. In the western world anyway, girls are favoured over boys for adoption to the point where I believe there is a waiting list for healthy girls under two (or certainly used to be.)
In the event I discovered I was pregnant just before facing panel. I got my second child to complete my family - a second boy. I was delighted! I’d have been delighted either way.
Congratulations 
So I’m just really interested in what makes people disappointed in having a boy? It does make me feel upset when I read those posts, as though boys are second best and not as valued as girls
It’s a really complex one and the problem is there isn’t an ‘answer’, or at least, not a definitive one which addresses all situations and people in those situations.
There is, or can be, a very shallow sort of view relating to pink dresses and so on and I’m not going to say that no one longs for a girl for those reasons as I am sure they do, but I know so many intelligent, thoughtful, educated women who have admitted either a longing for a girl (they have stressed this is a fictitious as well as not instead of their boys) or relief and delight when they had a daughter. I would consider myself in that last category. I got pregnant for the final time in October 22. I was 42, so just seeing the two lines was a ‘wow.’ I also knew I would be unlikely to see them again even if it had been a good idea, so it was definitely my last baby.
As the pregnancy went on I did have this real longing for a girl. I barely even considered it might not be. My head did - kept mentally correcting my pronouns and telling myself it was probably a boy and I just didn’t know how I’d feel. My real worry was being told it’s a boy and feeling sadness then guilt for being sad at a beautiful baby … I was actually worried about it right up until I went in for my c section when I realised I adored whoever was inside me whatever the sex.
But as to why, I think there are societal and personal reasons. I do think people forget that we often don’t know how we’ll feel until we’re in a certain moment.