Figuring out all the new relationships and roles when a new baby arrives can be very challenging. Most new parents  are surprised by what they learn about themselves and their partners when a baby comes.
Baby care: 7 ways to get dad  involved- http://www.ivillage.com/baby-care-7-ways-get-dad-involved/6-a-129140?ice=iv:mb:msg:kp 
Does your DH/SO actively help out with baby care? Does your partner change diapers or get up in the middle of the night? What doesn't he do that you wish he would?