Removing alcohol leaves a void that must be filled with more beneficial activities and thoughts. How are you filling that void? For me, finding positive sober activities has been the key (coming up on 90 days). In the early days, many of us stay close to the forums and read all we can about alcoholism.
What gave you joy before alcohol took over? How are you preparing for the birth of your son? This is a fantastic time to get sober and build your family.