Carbon dioxide. Carbon dioxide (chemical formula CO2) is a colorless gas with a density about 60% higher than that of air (1.225 g/L) that is odorless at normally encountered concentrations. Carbon dioxide consists of a carbon atom covalently double bonded to two oxygen atoms.
You should only do ballet in pregnancy if you are used to it. Ballet stretches can place a lot of pressure on your joints, especially your pelvic joints, and standing on one leg can cause pain in your pelvis.
According to the American College of Obstetricians and Gynecologists (ACOG), healthy pregnant women can fly safely until their 36th week. The best time for pregnant women to fly is between weeks 18 and 24, since the chances of miscarriage and premature labor are both relatively low then. So if youâve already made travel plans, you donât have to rush to change them just because youâre pregnant â but read on for more information and helpful hints.