According to US Weekly, the couple will welcome their first child and daughter in September later this year.
Neither Adam or Behati have confirmed this yet.
News of their baby's sex comes after reports revealed Victoria's Secret model Behati is pregnant.
Last month, a source revealed to the same publication that Adam and Behati were 'over the moon' to be expecting. The Voice USA coach Adam later confirmed the news by debuting his wife's baby bump on Instagram for his followers to see.
Behati could be seen in a red bikini with her stomach baring signs of a neat little bump in the snap. Alongside it, Adam posted a baby emoji and added the caption: "My two favourite laker fans."
Their baby joy comes nearly two years after the couple tied the knot back in July 2014. Adam and Behati married in Mexico in front of almost 300 guests.
Since their big day, both have gushed about their desire to start a family together. Behati recently revealed during an appearance on The Lowdown with Diana Madison: "Since I was a little girl I've always wanted a big family, I'm an only child so I wanted like ten kids, for sure!"
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