What to do about nothing?

I'm currently trying to decide where it is I want to go with my life. Such as career, family, schooling, etc. I'm printing out a 15 pages career guide but I don't think it will help. I think I just need to bite the bullet and go back to school. When the next baby makes it's appearance is yet to be determined. I don't have to rush I'm young enough but nature has other ideas for me. It's called infertility. I shouldn't complain too much because I do have one absolutely gorgeous baby, but...
Isn't there always a but. I've never had to take my temperature and then have my husband come rushing home only to end up standing on my head while nature does her business. It's just that I'm afraid the longer we wait the more time it will take when we're ready. Ah, what to do? Go to school, get a job, have a baby... The list goes on and on. What do ya'll think, is anybody listening?