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 ExtenderControl Valve Body Assembly Installation Automatic Transmission Unit Control Valve Body
Control Valve Body Assembly InstallationCalloutComponent Name1Low and Reverse Clutch Fluid Passage Seal21-2-3-4 Clutch Fluid Passage Seal3Control Valve Body Spacer Plate Assembly4Control Valve Body AssemblyNote:Align the manual valve to the rod on the manual shaft.5Control Valve Body Bolt-M6-x-60-(Q ...