Dull skin during pregnancy?

I am now 9 months pregnant, due on 15 April. Ever since i have been pregnant my skin has gotten worse. My complexion has darkened, no glow on the face, always tired eyes, etc. I m taking prenatal vitamins regularly, diet is good and i exercise daily. Inspite of all these things I dont luk gud as before. Will i regain my normal skin complexion and other things post delivery?