Opportunity is not going to knock on the door just because he's home. He needs to get out into the community to meet people in a non-threatening way. He should do any and all of the following:
join a newcomers club
join a church or synagogue
join a community chorus or drama group
volunteer - at the senior center, at Habitat for Humanity, at the food pantry, on a town board or committee, with the Scouts, coaching a team, cleaning up the local nature area or town cemeteries, whatever. Volunteering is a key way to show your skills, personality, and get to meet new people - exciting and interesting and active people are attracted to others the same way.
write a column for the local paper on mortgages, refinancing in challenging times, how the new banking and credit laws affect home ownership, etc.
Take or teach an adult ed course - often the community colleges or the vocational schools run evening classes.
Take a dance class - okay, maybe not good at your stage of pregnancy, but someone else may be reading this who can use it now!
Join a gym - leave business cards at their networking center.
Join a BNI or other business networking group - he can advertise his services, and members usually refer to each other.
Other than the BNI which is specifically designed to drum up business, the other activities will get him into normal social activities and expand his network of contacts. The more he gets out there, the happier he will be, the more he will meet new friends and develop a social life. Being someone who contributes to others is a very attractive and admirable thing - it makes others feel you are honest, caring, and someone they'd like to be around.