Occasionally we hear about women who say they didn't know they were pregnant until they went into labor. The tiny jolts I am currently feeling in my tummy make stories like that hard to believe, but the mommies in the video below are convincing that their unknowing pregnancy was the real deal.

Dr. Kristen Bendikson of USC told Good Morning America's Robin Roberts that these situations can occur when ladies suffer from polycystic ovarian syndrome or enter their perimenopausal transition stage. In both cases, menstrual cycles aren't regular so missing a period may not denote pregnancy. Also a key factor for many women is their weight. The heavier a person is before pregnancy, the less noticeable a weight gain would be in a nine month period. Tell me, do you think you could have missed the pregnancy signals?