It is possible in some jurisdictions to become a social worker without having a degree in social work, but in the majority of scenarios, either a bachelor's or a master's degree in social work (BSW or MSW) is required for a social work license. A master's degree is required by many jurisdictions, especially to practice clinical social work
You could also look into Family & Child Development degrees, if a Social Work degree is not required for the future role that you're interested in. My original major was Family & Child Development - but I did complete some Social Work classes. I was originally interested in becoming a Child Life Specialist at a hospital. Good luck!