I’m not sure if I’m quite your target market as I’m childless by circumstance rather than through infertility, but I'll join in anyway, hope that's ok. I met DH late on and for various reasons (DHs reluctance, lack of family support, finances, my own ambivalence to a certain extent) I came to the conclusion that having a baby in my 40s was not the right thing for me, but it wasn’t as straightforward as ‘don’t want children’, it’s just the way things have worked out. I’d spent the previous decades just assuming it would happen when the time was right, but as it turned out the time has never been right.
I wish I’d had children in my 20s or 30s, I really do, and I envy friends with grown up children, but I can’t turn the clock back. I spent 2-3 years in my early forties being very sad a lot of the time, lots of tears for no particular reason, and a feeling of real emptiness, nothing made me happy. At the same time I knew a baby at this stage in my life was not the answer, and people going 'ah you're not too old, just get on with it' was really unhelpful.
BUT – I’m now 45 and apart from the occasional pang of ‘wouldn’t it be nice…..’ I’m happy. We don’t travel much or go on fancy holidays, we don’t have many lie ins, we don’t have loads of spare money, I’m not career driven; in many ways my life is just as it would be with children, but without them, if that makes any sense, I can’t give you a list of “amazing or exciting” things that you can fill your life with by not having them, because I’ve not done that, I’ve just found very ordinary things that for me help me to have peace and fulfilment in my life. Something someone said on here in a thread about children a while back really struck me – it was something along the lines of ‘happiness is fleeting but children bring real joy that gets into every corner of your life’. It made me really sad for a bit as it made it sound like that joy could only come from children, but it also made me think about how I was going to find that joy for myself, and for me the ‘I don’t have kids so I can go on lots of holidays and have fancy handbags’ wasn’t really cutting it, I needed something more permanent and solid than that.
I do think some of coming to terms with it is just time related – you have to go through the grieving process and come out the other side (and I appreciate this will be totally different and much harder for someone who really really wanted children but was unable to than it was for me, but it was still a process I went through; not so much grieving for a child specifically but for a life I always assumed I'd have but now didn't).
For me: we got a dog, which made a HUGE difference, I know it’s a cliché and I know it isn’t the same as a child but for me it’s gone a long long way to filling the empty feeling, she is the light of my life and it's impossible to be sad when she's around. I do some volunteering, I have dropped my hours at work just to spend more time at home (part time isn’t just for parents!), I cook and bake more than I used to and have become much more interested in interior design and building a lovely home for us. I read a lot, and watch a lot of Netflix! DH and I have a lot of time for just hanging out with each other each other which parents often don't have; I recently got chatting to someone I met through work who is a happily married mother of four, and she said to me that she thought the relationship of a couple who don't have children can be something really special as you have quality time to invest in each other, and that she envies a bit, which I had never thought about before.
My life is very calm and quiet, and for me that is the main upside, if there is one. Watching friends that have small children try to juggle work with childcare, and spend their whole weekends taxiing between parties and hobbies, it looks HARD. Friends with older children are worried about education, teenagers going off the rails, university fees etc, I also have friends and family members who are single parents with all the additional stress and worry that divorce itself and the situation afterwards brings; having to parent together after a nasty divorce is not a position I would ever want to be in and I know some children that have really suffered as a result of this.
Sadly, I have found that some of my friendships with friends with young children have drifted; meet ups and conversations revolve around their children so I have withdrawn a bit as it feels very isolating. I find it much easier to spend time with other people who have no children; people with older children or friends who are parents but who have managed to maintain a separate identity for themselves at the same time, I find so many women particularly are caught up in being parents that they don’t have the headspace for other things or comprehension of what life without children is like.
I don't think my life is better than being a parent, but equally I don't think it's worse, it's just different. I'll never know what it would have been like if it had gone the other way, maybe I'd be tons happier, maybe I'd be miserable as sin, who knows.