Breathing exercises will help increase lung capacity and its overall functioning. Pregnancy itself is known to alter the body’s immunity, making an expecting mother prone to viral infections. As the pregnancy progresses, the growing baby pushes against the diaphragm, reducing the lung capacity. You can begin with deep inhalations and exhalations, anulom-vilom, pursed lip breathing, and Om chanting that allows you to breathe deeply.
Source: www.newindianexpress.com/magazine/2021/may/09/fighting-covid-during-pregnancy-2299336.html