9 year age gap, two fathers, second child’s dad and I split when he was 2.
I thought I was creating a functional, loving family unit for both children to grow up in, with the bonus of my wonderful eldest having a lovely younger sibling and the youngest having a wonderful big sibling.
If the relationship had survived and been as I had hoped perhaps it would have worked out that way, with just the usual hurdles of logistics etc. It still would have been tiring and full on, but I think copable with.
As things turned out I’m a shadow of my former self, I love them both of course, but trying to give to both in our current circumstances is killing me (no exaggeration). The youngest has some SEN and is very full on, I have barely had a full night’s sleep in 4 years. The relationship break up decimated me and my ex is abusive and very difficult to deal with (obviously I did not realise this when I got pregnant - planned - 4 years in), so he continues to wear me down. The eldest and I have lost the close relationship we once had, the only way to give the eldest what they need is to outsource as much as possible (time with their dad, time hanging out at friend’s houses etc etc). I can’t even imagine enjoying spending time with them anymore. All I do is work, housework, childcare and worry about money. I am short tempered, stressed out and have nothing left to give.
So I would say if you have a lot of financial security and relationship security then I imagine it would be tiring but have plenty of benefits. If either of those are shaky there’s no WAY I would do it, knowing what I know now.
I have a big age gap with my sibling, who I love, so I don’t think it’s a problem necessarily for the children - but we shared the same father and were always a single family unit. It does depend a bit what your eldest is like too and how well you think they’d cope.
Circumstances aside, I hadn’t really factored in that I would have a full on teen, child starting reception and the perimenopause to deal with all at the same time a few years post birth. There’s a LOT of hormones in my house.
If you have a lot of support that’s one thing. If not… think very carefully