We have 4 daughters. 15,19,26,27. I wouldn't trade them for anything! And though there have been many challenges along the way, we have always managed to muddle through and make it work. 2 have autism with medium support needs, so that added to the workload of raising our kids. And when you have 4 kids and extra medical bills, life is really expensive. We do good, but nowhere near as good as others our age, because of the inability to have 2 full time careers with our girls' needs until just a few years ago. But, the years really do fly by! And before you know it, the busyness of multiple young children is behind you. What would I change? I'm not even sure at this point, because I love my family and the relationships we have. If we hadn't been presented with our challenges as parents, siblings, children, would our relationships have flourished as well? All of our children benefited from our dynamics and as they have grown into adults, they are kind, loving, thoughtful, and helpful to us and each other.
I started at 22 with the last one born when right before my 34th bday. I will say I'm kinda burnt out and ready for the next stage of life and sometimes wonder if it would have been better to have them close together. But then I remember that it was much better to have one baby at a time than 2. lol
But truly, no regrets! I have heard the saying that most people never regret the kids they have, only the ones they don't. I believe it. I was open to more after 1 and 2, kinda on the fence, but mostly done after 3, and a hard, full-stop done after #4.
Good luck with whatever you decide!