Hmm, di umur sebegitu usually memang ada anak yang lambat sikit dalam speech development, tapi better check with your pediatrician la sebab setiap anak beza pace dia, some of my mum friends' toddlers baru start talking properly around 18-20 months, tapi ada jugak yang kena speech therapy early intervention. Doc akan assess tengok ada other signs ke or just language delay je, so don't worry dulu but do get it checked out soon okay!