Those who engage in advertising know of this expression, whose concept is the ability of a sound, an image a voice or a fact, to be captured by human memory for a long time. A notice in a graphic medium is pregnante when its design captures our attention and manages to be located in the "Top of mind" of memories. But it is also pregnante a song associated with a pleasant time of life or not. Pregnar would be the action of endowing a property thing to be pregnant.