Short of breath

from baby center: "You need more oxygen during pregnancy, and your body adapts to meet this need in several ways. An increase in hormones, particularly progesterone, directly affects your lungs and stimulates the respiratory center in your brain. And while the number of breaths you take per minute actually changes very little during pregnancy, the amount of air you take in with each breath increases significantly."

Of course, later your lungs get squished which doesn't help, but I think it is normal. That said, if it is concerning you, def call your OB. Go with your gut. I will say I have been winded since day 1 with these 2.