Congratulations, Nancy! It is so nice to be "official", isn't it?
If Ontario's health records work anything like Nova Scotia's, in addition to noting that you are female, there will probably also be a note that you are transgender. For medical purposes, that is important information for them to have.
They don't always look at that note, however. When I went for my first mammogram, the technician was asking some questions for their records. One of the questions was, "Do you still have your uterus?" I replied that I had never had one of those.

She started to note my response on her form, then did a priceless double-take. "Huh??" I enjoyed the reaction for a second, then explained.
Speaking of mammograms, the standard for trans women is that you should start getting mammograms if you are in the normal age range and you have been on HRT for five years. So, depending on when you started HRT, you might not get booked for one right away.