To work independently as a Speech-Language Pathologist/SLP (CCC=Certificate of Clinical Competence), you need to have a Masters. An undergraduate degree in SLP can be obtained, however, you are more likely to find work as an SLP assistant. The MS or MA, depending on where one goes and which classes one takes, is generally 2 years with the second year starting in the summer after 1st year and finishing off fall and spring semesters.
To the OP...I think you have a good chance...Just be sure to fully and completely explain you reasoning and thought process as to chosing medicine and mainly your interest in osteopathic medicine. On your essays, both primary and secondary, emphasize thoughts, feelings, and emotions with specific events or experiences that led you to persue medicine. REMEMBER, stats and numbers as well as your volunteer, EC, and work history are already on your application and can be viewed by interviewers and the adcoms. What they can't see are the individual and "powerful" events in those lists that helped shape your thought and decision making processes. Use the essays to your advantage! Good luck! 🙂