The couple will welcome their newest addition in October this year, and have not shared the sex of the baby yet.
In September 2016 Caro wrote a blog post sharing the news that she had suffered a miscarriage.
"Recently Kingi and I miscarriage at 7 weeks, we had been trying to conceive for about 4 months. To get this news was devastating, your embarrassed, your empty, you blame yourself," she wrote on her blog.
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