Being in the sun tends to increase these marks, so wear sunscreen and a hat when you are outside in the sun. The marks will fade or disappear after the baby is born. Many women will have a dark line that starts above the navel and extends down to the pubic area. This line is called linea nigra. It will fade after delivery.
Many pregnant women develop reddish streaks or stretch marks as the abdomen and breasts grow.
These marks are caused by the skin stretching to make room for your growing fetus. There is no way to prevent stretch marks during pregnancy, but they may fade slowly after pregnancy. These also will fade or lessen after your baby is born. Acne may develop during early pregnancy, especially in women who often get pimples before their periods. The best way to treat mild acne is by washing your face with a mild cleanser several times a day.