Bernice Call Mummy at 18months Old

At 18th months, bernice decided to call mummy as "Mmmin". The first time she called me was on the 29th Jan (Last Monday). It was 9.05am, I was sitting at my dinning table logging on the computer. Bernice came and she try to climb up to sit on my lap. I ask her to call mummy and surprisingly she say "Min!". I ask her for about 4-5 times and she says "Min" "AMin". I was so happy!