Retired physician here. From long, long ago when we woman kept increasing in numbers. I was a chemistry major who decided on medical instead of grad school like my friends who became PhDs and went various routes. No way Chem E for me. Differences in sciences and engineering. Plenty of time for your D to figure things out.
Our son did honors math and then finished second major in comp sci. Zero interest in becoming a physician like his parents. Ended up working instead of any grad school. Seems intellectually satisfied with being a software engineer (developer at former job). Prefers that to research. I get the differences. Both are software versus hardware computer engineering.
For medical school any major is acceptable. Many choose sciences because they like them- and so many courses required for both. Any college will do. If medical school is a possibility choose an academic fit but watch the budget- flagship instate schools are great. Less than half with premed intentions (was 1 in 3 for my time and heard the same not too long ago) will go to medical school so having a plan B is needed. This means choosing a major one actively likes and can do well in. Once in college she will modify plans for a major and profession as she learns more about them and who she is. Way too soon to worry.
Your job now is to allow your D to have a good childhood while maxing out on rigorous HS courses that fit her. Her job will be to have good study habits- this will serve her well in learning now and in college. She also should join activities she enjoys- for fun, not a resume. I recall saying I would only take the minimum required two years of HS science, then went on to a Chemistry major. Your D will continue to evolve. I had medical school classmates who ran the gamut from wanting to be a doctor since childhood to one with a PhD in philosophy and graying hair (close to 30, gasp).
The short answer. Let her STEM (or other) interests determine her major. Her college experiences will lead her on the path she should take. Way too soon to know.