Normally, because of her age, I would say don't worry about it, her speech will come. But because of her birth, if it was me, I would maybe have someone look at her and see if speech therapy would help. I can guess she is probably normal and on track though :) she has been a miracle in every other way.
Jonathan was a late talker in lots of ways. But he has always had super well above average intelligence and always on the more physical side. He seemed to get by with on a bare minimum of speech until he broke his leg last march then he HAD to talk because he was in a full leg cast.

I got the Kumon books for him :) After just a few days he can write the first 4 letters of his name alone. Really impressed with them, thanks :D
They are quite hard to get in northern ireland though lol.