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 ExtenderIntake Manifold Disassemble Intake and Forced Induction Intake Manifold
Remove the throttle body bolts-(1).Remove the throttle body-(2).Remove and discard the throttle bodyseal-(3).Loosen the evaporative-(EVAP) solenoidbolt.Remove the EVAP solenoid-(1).Remove the manifold absolute pressure-(MAP) sensorbolt-(1).Remove the MAP sensor-(2).Remove the lower intake manifold b ...