Nothing is more exciting and nerve-wracking than the arrival of your first child – and celebrity parents are no exception!  Josh Duhamel, 40, can attest to this, as he’s one busy dad-to-be.  With his baby boy arriving in less than a week, Josh has been busy with Valspar Paint and Habitat for Humanity launching Valspar Hearts and Hands for Habitat, a program that benefits Habitat’s Disaster Response program. What else has Mr. Duhamel been up to?  What inspired him to get involved in the Valspar/Habitat program? How is he feeling about impending fatherhood? Celebrity Baby Scoop has all the details!  Here’s a sneak peek: On his involvement in the Habitat program: “I feel…