Mama, ito talaga best na itanong sa dentist mo directly kasi pregnancy changes a lot sa gums at teeth, swollen gums, sensitive teeth, the whole thing, so kailangan ng doctor to assess kung safe talaga mag-adjust ng brace in your case. A few of us have been through dental work while pregnant, at ang consistent advice talaga is to always inform your dentist na buntis ka so ma-adjust nila ang treatment accordingly, especially during the second trimester when it's generally safer for dental procedures. Better safe than sorry, di ba?