These are requirement to get eligible for the Ontario Health Insurance Plan (OHIP) if you are included under one of the following categories:
1.You are a Canadian citizen, permanent resident or landed immigrant, or are registered as an Indian under the Indian Act.
2.You have submitted an application for permanent residence in Canada, and Citizenship and Immigration Canada has confirmed that you meet the eligibility requirements to apply for permanent residence in Canada.
3.You have applied for a grant of citizenship under section 5.1 of the Citizenship Act (Canada), and Citizenship and Immigration Canada has confirmed that you meet the eligibility requirements to apply for citizenship (i.e., children adopted internationally by Canadian citizens).
4.You are a "protected person" - i.e. a Convention Refugee or a person in need of protection.
5.You are a foreign worker who holds a valid work permit or other document issued by Citizenship and Immigration Canada (CIC) permitting you to work in Canada, and you also have a formal agreement in place to work full-time for an employer situated in Ontario which sets out the employer's name, your occupation, and confirmation that you will be working for no less than six consecutive months.
6.You are a member of the clergy who is legally entitled to stay in Canada and will be providing services to a religious congregation in Ontario for at least six months.
7.You hold a Temporary Resident Permit with case type 80 (for adoption only), 86, 87, 88, 89, 90, 91, 92, 93, 94 or 95.
8.You are the spouse, or dependent child (under 22 years old or 22 years and over if dependent due to a mental or physical disability) of an OHIP-eligible member of the clergy or OHIP-eligible foreign worker.
9.You hold a valid work permit under the federal Live-in Caregiver Program;
you hold a valid work permit under the federal Seasonal Agricultural Worker Program.
From my point of view you should wait until you become a PR.