Hi,
Firstly, apologies for the length ..
I think you are analysing the decision too deeply. I don't blame you ... if that is what is in your nature to do.
I was exactly the same, always analysing everything to the point of chasing my tail.
I wasn't bothered about children, had nieces and nephews and was fine with that. Wasn't fussed about getting married either. Had a nice house, lived on my own, did exactly what I wanted to do & when I wanted to do it.
But then ...
I met my husband, got married (at 39), got pregnant on honeymoon and now have the most 'AMAZING' 3yo dd I could have imagined.
Believe me, your life will change! It's hard, knackering at times, emotionally good and bad BUT utterly, utterly wonderful.
You cannot explain the total love you feel for your child. Sometimes I feel I could explode. Just last night my dd and I were hugging and dancing to Josh Grobans 'February Song' and I was blubbering away as it was such a special moment. My dd was telling me she loved me 'so' much and it was all a bit too much for me.
If you have doubts about your decision just keep this in your mind - you cannot compare the reward and joy that your own child will bring you against that of a stain free sofa and tidy house. Don't regret missing out.
In my experience those people who you'd think would never have children or would not necessarily make natural parents turn out to be amazing parents & end up coping better than some parents who you'd originally have thought would be more natural.
My dd has a very special relationship with her daddy and grandad and it's wonderful to see.
We have a really magical time, fairies, princesses and lots of make believe. There really is nothing more special than snuggling up in dd's bedroom at bedtime underneath her fairy bed canopy reading 'Winnie the Witch' with fairy classical music & dimmed lights.
Rose tinted glasses ? Not at all, it's just how it is. On the flip side, having to deal with a toddler tantrum in Sainsbury's or a refusal to get dressed in the morning or walking into the lounge to find a crayon masterpiece on the wall or sitting up all night administering calpol and soothing a coughing, snot filled child is not most peoples idea of fun.
In a long winded way, what I am trying to say to you is that every aspect of having a child is 'a moment' and those moments make your memories and 9 times out of 10 make your heart sing.
I am so glad I made the decision to just 'go for it', time wasn't on my side and if I'd continued to fanny around trying to convince myself that I didn't want the disruption of a child I'd have missed the boat and all the wonderful things that I've experienced since.
Life hasn't been easy, I've had physical problems e.g. back pain, joint problems & difficulty losing weight etc. but I am getting back to normal and really do feel blessed.
Good luck with your decision, you'll make the right one