Why is that the "perfect time?"
We are waiting until May 2017 (have baby early 2018) so that we will have a 2.75 age gap, I will be done with grad school and I can take the rest of the school year off and go back to work when baby #2 is 6 months old or so. (This is also in a "perfect world" where you get pregnant when you want and don't miscarry. )
What about you?