The best place to get information about your options is the BC Home Educators Association website: http://bchea.ca/. The section called New to Home Education offers an overview of laws and options. The Educational Options in British Columbia article embedded in the section helps to clarify the difference between registering a child as a BC student and enrolling a child in a distributed learning program.
Useful definitions from the website to keep in mind:
How do I know if homeschooling is right for my family?
Some families know right away that homeschooling is the right option for their child. But others had to explore for a while before figuring out exactly what works best for the whole family.
(Stories about different paths to homeschooling coming soonish!)