Yes, the skin complexion will get affected during pregnancy. Certain pigmentation changes happen due to hormonal changes in the body. The pigmentary changes in the face are called chloasma which also means darkening or discoloration in the area of the cheeks, forehead and nose. It is also known as the mask of pregnancy. You might feel that your skin has tanned. This discoloration can disappear after few months post delivery. If you are concerned you can consult a Dermatologist for the same. The changes in the skin of abdomen are called Linea Nigra. It is a dark vertical line that appears on the abdomen during about three quarters of all pregnancies. This is natural pigmentation and is not a reaction to any chemical or physical factor. It fades away after a few months post delivery.