14-month old WORRY

Worried ako. Babbling pa rin si baby 14 months old and 1 wk na, wala pang words na alam. Pero alam nya pag dog at dinasour, naggrowl sya. Pag cat at goat, nagssqueak sya. Alam nya rin i-identify yung animals kapag pinakuha/pinaturo ko yung picture. Pero wala syang alam bigkasin ni isang word maski mommy/mama/milk. Normal ba yun at her age? Pahelp..