1 Both these new developments cause frequent urination during pregnancy. 2  This adds to the feeling of dehydration and dryness of the mouth in pregnancy. 3  Dry mouth at night during pregnancy could also be the result of some kind of health condition. 4  Dry mouth in pregnancy is not a disease but a symptom.
(June 2015). In the United States, the academic year typically has about 180 school days for K-12, running from the early in the Northern Hemisphere fall to early summer.
In some countries in South American students are required to be in  school 200 days out of the year. In Brazil school starts in  February and a two week break is given in Ju â¦ ly.