"I hate getting emotional but seeing her like that triggered this influx of emotions that really made me realize what's happening in our life," he said, explaining how his wife's maternity photos created such feelings. "Without each other, the two of us would never have gotten to this point, so it feels amazing and it's crazy how much more in love you can become when you start this phase of your life."
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The couple's deep bond was on display earlier this month, when they threw a Game of Thrones-themed baby shower in anticipation of Odin's arrival, where a source told ET, "Nick and Lauren were very happy, hugging and kissing throughout the day," noting that around 60 guests were in attendance, including the singer's fellow Backstreet Boys, Kevin Richardson and A.J. McLean.
And while the proud parents remained tight-lipped on the baby's name at the time, Odin Reign certainly reflects what Carter told ET earlier in April, that the couple had picked a "strong name" for their child.