Sometimes when i try n fall asleep i wake up just before dozing off and i jump and gasp for air! it is very scary. what could this be. im 31w pregnant?

?sleep apnea: Many possibilities, including panic attacks, sleep apnea, and perhaps issues associated with your pregnancy. First, discuss with your obstetrician, and, if still obscure, then evaluate sleep study, and perhaps psychological stressors.

Half Asleep Startle: When we are half asleep, we are more likely to startle. Drs call it a "hypnogogic state." that may happen more easily if we have some discomfort that awakes us. In pregnancy you are likely to have such discomfort. Tell your OB dr in case there are important details not mentioned in this short communication.