Hi myself & my partner have 3 kids already but really want a fourth
Why?
What is missing from your life? Why aren’t three children enough? Do you work?
I feel we’d just manage but am I being silly/selfish, should I just be grateful for what we have?
Yes and yes. Do you know how much teenagers cost, not just financially but mentally? Teenagers need you far, far more on an emotional level than a small child where a just a kiss and a cuddle makes things better.
You will have to deal with friendship issues, relationship issues, GCSEs, A levels, UCAS, financial contributions towards university. Stop and think. You need to look ahead, not just at now and what you want, but what the implications are for your family and for your finances. You haven't thought this through at all, have you?
And you aren't even married to your partner. Are you financially independent?
Your older children will prob help you with the baby / b sitting a bit later on. Everyone loves a small child.
Utter nonsense! Not true at all.