Most people Urinate less at night and avoid forays to the bathroom during the night. But getting up once or twice at night to pee is much natural, especially if you’ve been out partying or had a tea before bed. If it annoys you, beat off the liquid consumption at least an hour.
During pregnancy urinate can increase for two reasons. Hormonal changes mean blood is flowing faster in your kidneys, which fills your bladder often. Also, a growing uterus can pressure on your bladder.