There was a time that I strained against what God had planned for my life. Once I decided that having a child would be a good thing and not a potentially alarming/scary thing I wanted to have a bundle of them running around. Miscarriages kinda took that idea away from me rather slowly and painfully. This has left me with one child.... and he is, in my personal opinion, a rather delightful lad. :)
He's eight years old now and I've only in the past year really come to understand that God really did have my best interests at heart when he gave me one child.
I watch my homeschooling friends raise their youngsters. ... most with at least two children and I, time and again, wonder how they manage. I find my time quite taken up just managing my hubby and one child. I just don't really understand how they cope with the noise and bustle of all those children, meeting the various needs of the family, get meals on the tables and such like. I am very frequently amazed by them.
One child is enough for me. :)
One of my biggest pros of having one child to rear and educate means that I can gear my homeschooling around him and my style of doing things quite easily. I don't have to accommodate a variety of learning styles, a variety of interests, and such like. I have one boy....who likes all things buggy, loves to listen to me read stories to him, likes to tell me things he knows, who is a careful cautious lad (and to think I used to find the daredevil children so much fun), and just plain fun to hang around with.
Mind having one child can also be a challenge....he doesn't have siblings to keep him busy or to teach him more easily the fine art of sharing, many curriculi are based on group learning, I have to be deliberate about having social interaction times, and when it is just him and me, the difficult days can't be made easier by saying ... go play outside all of you children NOW! It is just sometimes more difficult. But......those difficulties are quite manage-able in the long-term.
I don't need to deal with sibling rivalry, or with the two needy children on the same day, or the need to say no to some field trips because it would get too costly to take all the children.... I simply don't have to deal with that. It's a worry I don't need to deal with.