Seat belts work for everyone, including pregnant women. Like all occupants, they are more likely to be seriously injured if they do not wear seat belts.

A pregnant woman should wear a lap-shoulder belt, and the lap portion should be worn as low as possible, below the rounding, throughout the pregnancy.
The best way to protect the fetus is to protect the mother. When a seat belt is worn properly, it is more likely that the fetus will not be hurt in a crash. For pregnant women, as for anyone, the key to making seat belts effective is wearing them properly.
Lap-Shoulder Belt
Seat Belt Extender#00-03-10-002H: Chemical Staining, Pitting, Corrosion and/or Spotted Appearance of Chromed Aluminum Wheels - (Oct 24, 2013) Wheels
Subject:Chemical Staining, Pitting, Corrosion and/or Spotted Appearance of Chromed AluminumWheelsModels: 2014 and Prior GM Cars and Trucks This bulletin has been revised to add the 2014 model year and update the Parts Information.Please discard Corporate Bulletin Number 00-03-10-002G.Important:Y ...