First time hiring a helper

This is my first time hiring a helper and i have many questions about what is the law. i am hoping that some of you can enlighten me in this.

my questions are-


1. i am hiring someone that i have chosen, meaning a direct hire. if after working with her for some time and i find that she is not suitable for her job, can i terminate her or do i have to wait until her two year contract is up? if i can, what are the compensations i must give her?


2. exactly how does their annual leave work? is it 14 days a year or a month in two years?


3. sometimes i may need her to work on a sunday, she requested that i pay her instead of replacing her day off on another day. how much should i pay her for working on a sunday or public holiday?


4. i am currently 4 month pregnant and may need to return to my home country to give birth. i am considering bringing her back to Malaysia with me so that she can look after my elder son when i am in labour. is there any law that says i can't bring her out of hong kong? if she has only been working for me for two month, will i have difficulty getting her a visa?


thanks for all your help. please bear with me on my ignorance, i really have no idea about what to do.