I’m 18 months old today! by elevins | Nov 10, 2011 | 18-24 Months Mommy says this is a pretty big deal! Related Posts I'm 19 monthsToday I'm 19 months old. Dad decorated Ernie. I went to visit him. I'm 20 months old today!Mommy reminded me after my nap that today's a big day - I'm 20 months… I'm 6 months old today!Shouldn't I be allowed to drive by now?