Aaah I really feel you with this question.
I have 10 year old twins, split up with bio dad when I was 8 wks pregnant. He never got in touch again (no maintenance etc). I got together with a long-term friend when the babies were about 6 months old. We are still together and my children consider him to be dad. He considers them his children as much as if they were bio.
They were unplanned, premature and poorly. At the same time they were born my dad had a terminal illness. I had to give up my job to care for my dad, and also the childcare I'd had planned wouldn't have worked as babies were too tiny/prem. So, amongst all of that I had to set up a business to pay the mortgage.
Dad then died when they were 3 yrs old. My son was diagnosed as autistic and dyspraxia (he goes to special school now as he really struggles). My daughter is going through the process of autism assessment now, I should have pushed for it years ago. My son is still like a 5 yr old in many ways, and my daughter is incredibly clingy (won't go ANYWHERE without me).
I missed so much of their early years dashing around, trying to keep a roof over our heads, caring for my dad, grieving for my dad, pushing for my son to get the medical help he needed. I consoled myself with the fact at least I'd get the chance to do it again - my DP and I agreed we wanted one between us.
The years ticked by. My son continued to struggle. My daughter's struggles became more evident. I work through the night to catch up on work so I'm constantly sleep deprived.
It would be fucking madness to have another baby. Plus me and DP never get time together, it's only just starting to happen. He said no more children especially as I am at risk of having Huntington's Disease. He wants to have some years for us to enjoy each other's company, plus we need to focus on the kids we do have who need us still very, very much.
He's right. Of course he's right. But OMG some days how I yearn for a baby again. I don't know how I will come to terms with it because I'm grieving for what I missed over those years. And I kind of realised that actually I don't necessarily want another baby, I actually want that lost time back again when I wasn't running around trying to do everything. I want that lost time with my kids once more to properly appreciate it.
I think the hormones in women can drive a biological desire for children and that kind of primitive response is hard to ignore. Doing the right thing, and the thing your ovaries want you to do aren't always one and the same haha!
Anyway, short answer is I get you. I imagine we'll just slowly feel less broody about it all and realise that another child might ruin the beautiful families we already have ❤️