I know this is going to sound extremely old fashioned, but I am thinking how easy it was when I had my children. (Except the second, for which we waited 5 years, and were wondering if we would ever have more than one)
Because I was willing to take however many children I was lucky enough to receive, I never worried about it. HOw nice to just let nature take its course. AFter fearing I would only have one, I decided it was a whole lot better to have them come! :) I received (birthed and raised) four children who are 5 yrs apart, 17 months apart, and 25 months apart. I really empathize with families today....so many choices, it boggles my mind. My dad (who passed a few weeks ago) always said the more advanced we become, the more we complicate our lives. How true it is!
If you know you can love and nurture another child, I say go for it! I will never regret having the children I have, and sometimes wish there had been more, but I am thankful for the four I have. The hardest part was addressing other people who saw me as irresponsible for having more than two children. I love all my children, but I am really thankful for the youngest, since I was so much more relaxed with all the experience I had had, I believe we share a better relationship.
Blessings to you in whatever you decide!