I am a speech pathologist. As it happened, my undergrad degree was in speech and hearing sciences… but that was back in the day when one could actually get a job without a masters…or license.
I would strongly suggest you go to the American Speech Language Hearing Association website and look in the information for the public. There is a ton of information about this profession and what it takes to become a speech pathologist.
ETA…the field is very competitive…and some undergrad communications programs don’t admit you until your sophomore year…if you meet the GPA bar. In addition, the grad programs are competitive for admission.
If you look at the grad programs, you will see the requirements they expect you to meet for admission.