If you notice that there's a speech delay, during doctor's assessment, you can raise this concern and they can refer to KKH/NUH for a speech consultation or in other words access the situation to check further. They may seem to understand what we said, but in the long run, you will never know if it can be of any other reason that she communicate with you in her own ways to make you understand. Sometimes, we can be wrong, meaning they just refuse to talk and only speak or opens up more when they are in school. So do get it check soon.