, I Am Blessed With A Baby Boy A Month

, I am blessed with a baby boy a month ago. he is regularly changing his complexion . from Fair he became brown and dark. on few days he will look good but on other few he will look dark. his hands are fairer than his face. but the real concern is that he has hair on on face, arms and body. and secondly his upper lips are too dark. he was born 3 weeks before his due date. My wife is lots fair and i am also not really dark. Kindly please let me know how long does it take for babies to shed the facial hair and till what age baby changes its skin colour