Apregnant woman planning her diet should generally include an extra 2000 calories per day.

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Nutrition before, during and after pregnancy directly impacts the health of a mother and baby. Prior to becoming pregnant, women should achieve and maintain a healthy weight. If a woman is overweight or obese, she should follow a reduced-calorie diet until she achieves a healthy weight. Once pregnant, a woman's energy needs increase due to the growth and development of the fetus as well as maternal tissues and an increase in the mother's blood supply.

when in a crucial situation, after calling 911, the correct posture for delivering effective compression is the proper hand placement.

first, place two fingers at the sternum, then put the heel of your other hand next to the fingers and place hand on top of the other. lock your elbows by using your body’s weight and compress the victim’s chest with a depth of 2 inches.

moreover, do 15 compression and 2 breaths, this process must be done four times until there is a pulse or a arrive.