Some reasons include being thirsty or not eating well. Click below for more info on pregnancy food cravings;
http://www.dailymail.co.uk/femail/food/article-5778449/The-three-reasons-pregnant-women-food-cravings-manage-them.html

Are you an internet Addict? Here are tips:
http://www.thejakartapost.com/life/2018/04/23/five-tips-on-how-to-do-a-spring-detox-from-your-smartphone-.html