The sun is useful for a human body, a time is not present. However all is good rather. And the pregnant woman does not need to spend too much time under the scorching sun. Is better to prefer short sessions of solar baths, and that at morning or evening o'clock when the sun is not so active. After all the scorching sun is capable to cause burns on a skin. Also from solar beams there can be pigmentary stains which then very difficult deduce.

Besides, surplus of an ultraviolet is hazardous to health of the child. Therefore is better to limit the solar baths to 15-20 minutes in day.