Hi, I can help you with your question today.
No, at one year of age I do not expect her head OR body to grow at this point.
Small breed dogs like the Frenchie generally stop growing earlier than large dogs, sometimes as early as 10 months of age.
They can become somewhat thicker as they build muscle mass, but her skeletal growth is done.
so if she is small will her babies have small heads
I can't say that for sure. It will also depend on the stud's head size.