How soon to start ttc for # 2

Hi everyone
So, I know we are all different and our capacity is different from each one...but in general, I was wondering how soon after baby #1 did/are you guys ttc?
Our baby turned 1 on Saturday, and although I dont want to be pregnant NOW, me & my husband are talking about being pregnant (hopefully) in six months time (around Nov/Des we want to test positive).
That would mean our 1st will be approx 2 yrs 2months when the second baby comes.
Does that sound ridiculous?? Do you mommies feels that's too soon after #1?