Page 25 of Sherbourne Health's "Guidelines for gender-affirming primary care with trans and non-binary patients" appears to be relevant here:

Patients covered by the Ontario Drug Benefit (ODB) program include those on Ontario Works (OW), the Ontario Disability Support Program (ODSP), seniors ≥65 years of age, youth ≤24 years of age (via OHIP+) and those on the Trillium Drug Program. For those on OHIP+, ODB formulary medications are covered barring existing coverage through a private drug plan. For patients covered by ODB, injectable testosterone is covered with the submission of an Exceptional Access form (EAP) (see Appendices N & O), while anti-androgens and oral estradiol are covered without the need for EAP approval.

When indicated, we suggest submitting the EAP application early in the planning process, since processing time by the MOHLTC can vary. Approval does not commit the provider to prescribing hormone therapy and prevents undue delays once the planning period is complete. Blank EAP forms can be downloaded from the Ontario Ministry of Health and Long-term Care website.

I recommend contacting your doctor for more information.