Nick wrote a heartfelt message in the caption for the announcement.
"Thank You God for giving us the greatest gift we could ever ask for," he said in his Instagram post.
Many fans have come forward on Instagram and Twitter excitedly congratulating the couple.
Congrats to you and @Lauren_Kitt !!! I just had my 2nd baby in April, and he was my rainbow baby. Wishing the best for the remaining of your pregnancy.— Cara Walker (@CaraWalker) May 24, 2019
Some are even sharing their own rainbow baby happy endings.
Nick and Lauren aren't the only celebrity couple to have openly announced their rainbow baby on social media.
TLC reality star Josiah Duggar and his wife Lauren Swanson also announced recently that they're expecting a rainbow baby.
Other couples have also taken to social media in recent years to colorfully share their good news.
Rightfully, parents are very excited to announce their pregnancy after a time they may have felt like it wouldn't happen again.
So far, no other details have been released about Baby Carter, but it looks like we can expect to meet this new addition sometime in the summer.
Fans took to Instagram to congratulate Nick and his family on their happy news. Congrats to the Carter family!
Copyright © 2020 Positive Posts