First of all, each woman, spouse, family member, and friend needs to know the precautions that the mother-to-be should know.
PRECAUTIONS:
If a woman has not been on an exercise program, pregnancy is not the time to start an exercise routine.
Before beginning any exercise program, it is recommended that the mother CHECK WITH THE DOCTOR, to ensure her health and the baby's health.
During pregnancy, it is best to exercise at least three days a week.
Also during pregnancy the woman should not do any exercises that cause stress to the abdominal area. For example, lying flat on the back can decrease the blood flow to the uterus.
The woman should not do any exercises that may cause loss of balance, especially after the third trimester.
An additional 300 calories are needed per day during pregnancy-so one should be mindful while exercising to ensure an adequate diet.
Things to remember when exercising in the first trimester:
Exercises For Pregnant Women 
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