Could I put a toothbrush up my vagina even though it don't vabirate?

No you can't. Tooth brushs are mainly manufactured to be used in the mouth not anywhere else . If you mean to use it for other purposes . I think it will be better if you avoid using a contaminated tool like a tooth brush where you use it in the mouth to remove the bio film of your teeth which is composed mainly from bacteria and it's toxins .