As a single parent, I have no desire to be a single mother to more than one child. I also don't plan on dating or having time for a relationship for a very long time. So, I am pretty confident I will only have one child. I also had a really serious condition from my pregnancy, and really am afraid to ever have more children and risk it reoccurring.
But, I love reading this post, you clearly put your child first, as where most single parents now days are just looking for that next person to spend their life with, or try to move on right away!