Early on, my wife (a pronounced extrovert) wanted adult contact and conversation more than anything. She wasn't all that happy when I was off in the land of ones and zeros when she was talking to me. It was a minor issue before the baby, but it really came into focus when their was a little person vying for our attention all the time. As your child gets older, this advice will apply doubly for the child.
This might sound a little crude, but, here goes: after the first three months, schedule opportunities for intimate time! Your time will be limited, and anything that is not a priority will go by the wayside. You can look up and find that it has been several months since you've been intimate. We didn't have a strict schedule like every Wednesday after she sorted the recycling[1], but we did agree in advance to "take a nap together" later that day or the next day. Spontaneity just didn't really work for us. The trick is keeping the pressure off - if one of you is tired and really just wants to take a nap together, that's got to be OK, otherwise it will drive you apart rather than bring you together.
Good luck. It's an awesome adventure!