Good day everyone! I have very sharp toothache. The dentist left it before…

Good day everyone! I have very sharp toothache. The dentist left it before treatment as it was impossible to put an anesthetic in. Now, even after giving birth, this unbearable tooth pain persists. Can anyone tell me if they've experienced something similar? Did you treat yourself at a late stage of pregnancy? Is it harmful for the baby? I haven't slept all night because of the pain ?