Safety belts work for everyone, including pregnant women. Like all occupants, they are more likely to be seriously injured if they do not wear safety 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 safety 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 safety belts effective is wearing them properly.
Chevrolet Cobalt Owners Manual. Using an MP3
Format
Radios that have the capability of playing MP3's can
play.mp3 or .wma files that were recorded onto a CD-R
or CD-RW disc. Radios that have a USB port can
play.mp3 and .wma files that are stored on a USB
storage device as well as AAC files that are stored on
an iPod®.
Compressed Audio
...