Different point of view here but here's my experience:
I had 2 DCs with my ex and was happy to stick with that for various reasons - my health (I couldn't do another pregnancy), my age (too old!), money, space, but mainly not wanting to go back to sleepless nights, weaning, toilet training etc. Not enough energy for that!
But in the back of my mind I always liked the idea of having a hoard of adult children when I'm older!!
We have since split. I then met my DP who by coincidence has 2 resident DCs of his own, similar ages to mine.
That has its difficulties and I have wondered in the past if meeting a man with children was a good idea.
But things are going really well now and future is bright and one of the things I really love about it is that between us we have 4 DCs and so will go forwards with a nice big family, full of challenges but lots of fun and 4 people all with their own personalities that are growing and shaping as they get older.
To get to my point, sorry this is long, I would have been very reluctant to have more 'babies' but now that I have more children in my life, I'm really grateful and looking forward to having them all around for our future.
I suppose I'm saying try to think ahead past the early years to consider what you want. The baby, child stage is fleeting, but you will have grown children for much longer, so that's the part to really think about, I think.
As for giving them what they need in terms of time, money, attention etc. Plenty of large families have to go without things because resources won't stretch, but there is a plus side that they have a big team of people around them that they can play with, learn from, lean on and grow up with, and will have their backs (hopefully) through adulthood, and I think that counts for a lot.