If you intend on majoring in the Humanities, you’re fine with Math studies.
In addition, colleges prefer you to complete the full IB diploma (especially to being one course short.) Do you have 3 SL’s and 3 HL’s already? How’s the rest of your schedule? Do you plan on taking calculus before graduation or in college? What do you intend to do in college? It depends on what you intend to major in and whether you’re good at math or not.