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.
Sheryl: Hi Amanda! It is definitely possible to become pregnant while breastfeeding. Before you can become pregnant, your body has to return to a fertile state. This can happen at any point in time and varies greatly from mother to mother.