My baby girl is 14 months and does not say any words yet, she only babbles noises such as dadada , yayayay, nanana ... and so on but nothing makes sense or has meaning. Should I be concerned at this early on??? She shakes her head to say no, and she is loud and does babble a lot .. Iknow I should never compare but it's hard not to when the babies at her play group are the same age and say between 3 and 5 words!