To prevent harm to a fetus, you can quit smoking and drinking before the pregnancy to get a higher chance of a healthy baby. You can also improve your diet by eating less red meat, increasing your fiber intake, and reduce soda intake.
It could be multiple things like a car or a creature, so answers could differ.
Answer: Use orthodontic wax to hold the broken bracket in place in your mouth until you can arrange to see your orthodontist. If the bracket has come loose, remove it if you can easily and bring it with you to the orthodontist for reattachment. Review the state of the wires from the broken braces bracket.