A typical Autumn for a Biology major or a student interested in pursuing a career in the health professions will include Humanities, Calculus, and General Chemistry. Whether you want to add a fourth course on top of that is up to you. For Calculus and Chemistry, the particular course you enroll in (MATH 13100, MATH 15100, etc.; CHEM 11100 or 12100) will depend on results from your placement tests and/or AP scores.
Since the Biology major doesn't begin in earnest until later in the year, there's no need to worry about that coursework now. Neither the introductory courses for the Biological Sciences major nor the Premed Sequence for non-Biology Majors begins until the Winter at earliest, so you have time to plan this out with your adviser. See the video at the bottom of this page for more info on pre-med expectations.
The main exception to this is the Advanced Biology sequence. If you are a prospective Biology major or premed with BOTH 1) a score of 4 or 5 on the AP Biology exam and 2) a particularly strong interest in research, you are eligible to enroll in this sequence. If you choose to do so, you will begin by taking BIOS 20234 Molecular Biology of the Cell in Autumn of 1st year. Students with a 7 on IB Biology HL and an interest in the Advanced Biology sequence should speak to the department. Advanced Biology provides a rigorous introduction to the subject. As such, you will want to consider your priorities and overall workload in deciding whether the sequence makes sense for you.