Rach, as the others said its only natural to have doubt. Even with #2,3,7,or 10.
Your DH will fall in love with bub as soon as its born, and you will cope just fine. Its hard for the first couple of weeks because everything is so new but it all works out in the end. Id recommend though that if you plan on breastfeeding to either read up as much as you can about it or go to workshops if they have them. I think thats the one thing that we arent educated enough on.
Im pg with #3 so no, its not all that bad. Its fantastic. To see my two play and love each other is priceless, and i cant wait for this bub to join in.
Christmas is going to be a blast when bubs comes, and birthdays, and holidays.

Its so fullfilling to be a mother and i wouldnt change anything at all.