feather2e said exactly what I was going to. You don't want to develop an infection because oral infections can affect the entire body sometimes.
I would go and see a dentist. They are used to seeing pregnant women and will at least assess your tooth . Most dentists prefer to wait till you have the baby and can usually do something to get you by temprarily. You dont want to just do nothing because sometimes you can get an infection from a broken tooth.
It maybe if you call your doctor/dentist that a topical safe compound may be used. Are you planning on breast feeding? That may make a difference. If no other alternatives to exist clove oil may be a weak source of relief.
You would be best to call your doctor and ask them what to take. Some don't want you to take many pain medicines at the end of pregnancy for different reasons.