I currently have a 16 month old girl and an almost 3 year old (december). We just found out friday (at 10 dpo) that we are expecting #3. My due date is June 21 2012 and it's the same due date I had with DD just 2 years later.
SO if all works out, I will have 3 kids under 3.5 and yes we planned it that way.
I look forward to getting to know you all!