Well my number 4 is now 7 months old.
I have 3 daughters 8,5 and just turned 3. 7 month baby is a boy.
I never quite planned number 4 and Dh certainly didn't, as he had the snip when dd3 was 2 weeks old
. Dd3 was 21 months old when we found out I was pregnant again. We were totally shocked.
Anyhow, he is just our little fat bundle of joy. I was dreading him coming as dd3 hated being a baby and cried constantly, was never happy until she was about 18 months. Both of us felt we couldn't do it again. She was just such hard work.
When ds1 was a couple of weeks old I was constantly in tears as just couldn't see a future where I ever smiled. The thought of dealing with the girls and a baby who never slept, smiled etc. He has turned out to be a dream and just slotted right in.
He lights up a room with his lovely happy wee nature and smile. I have never come across such a contented baby. Everyone comments on how good he is.
In reality my day to day life is just like having 3 and a bit children. Cost wise it is like 4 children. I can't afford to work, child care would cost too much. We had to get a people carrier. I have had to buy a double buggy and a few other baby things as gave everything baby related away!! Though most big stuff I have managed to get from freecycle.
I don't think our holidays have really increased in price. Well didn't have a holiday last year but year before was a caravan in Italy (with our 3 children) and this year a caravan in France (with our 4 children). Same size caravan.
I think once you have more than 2 children you stop your children getting as much. Things like getting magazines in shops, sweets etc. stopped once I had to start buying the three of them rather than just two.
There is extra washing, it never ends. Would have probably said the same with three children though.
Time is also a bit more scarce, trying to split between 4 instead of 3. I know dd2 doesn't get anywhere near as much of my time as others because she is the least demanding. This is my guilt thing, try to console myself that if I didn't feel guilty about dd2, I would still feel guilty but just about something else.
Weighing it all up I would say go for it if you still have the feeling that your family isn't quite complete.
I also now have two at school so that is a great help, with 3rd child just started pre school. I admire people who have more than two at home.