You may notice a more skin breakouts during the first trimester of pregnancy. Pimple breakouts are common and can continue throughout the duration of the pregnancy. Many women notice their face becoming increasingly oily and shiny. The “glow of pregnancy” is nothing more than hormonal changes causing the oil glands in your face to work overtime, which leads to unwelcome breakouts. This can also be caused by impending menstruation.You may notice a more skin breakouts during the first trimester of pregnancy. Pimple breakouts are common and can continue throughout the duration of the pregnancy. Many women notice their face becoming increasingly oily and shiny. The “glow of pregnancy” is nothing more than hormonal changes causing the oil glands in your face to work overtime, which leads to unwelcome breakouts. This can also be caused by impending menstruation.