Bodhi is the first precious baby for the couple, who tied the knot in April 2015 after one year of dating.
They announced the news on Instagram in May, when Nikki was already heavily pregnant.
"To our friends, family, and rest of the world. In my 38 years on this earth I've never experienced anything more powerful and beautiful than this," Ian wrote in an Instagram post that revealed the pregnancy. "I can't think of anything more exciting than this next chapter and we wanted you to hear this from us first."
"This has been the most special time of our lives and we wanted to keep it between the three of us for as long as possible so we could enjoy this time with each other and our little one who is growing so fast ... because that's what they do, they grow so fast," he wrote. "Thank you for your kind energy. Love, Ian."
Congratulations to the happy couple! We can't wait to meet the little bub!