Is it normal to be short of breath after every few hours during this stage of pregnancy?

It is common to feel out of breath as the baby is growing rapidly and pressing against the diaphragm, making it difficult to expand your lungs fully. Do not carry on the activity and take a few deep breaths to rest. If you continue to feel breathlessness and is accompanied by palpitations, it is something to be concerned about. Sometimes you may feel out of breath when lying on you