Billie Lourd reveals how she kept her pregnancy a secret

Last September, Billie Lourd -- daughter of the late Carrie Fisher and granddaughter of the late Debbie Reynolds -- shocked fans when she announced that she had given birth to a baby boy.

Now, the 28-year-old is opening up about keeping her pregnancy a secret.

Speaking on SiriusXM's "Quarantined with Bruce," Lourd opened up about her newborn, Kingston, whom she shares with fiancé Austen Rydell.

The "Star Wars" alum attested that little Kingston is not a quarantine baby, but agreed that he has been a bright light amid the ongoing COVID-19 pandemic.

"Kingston was conceived before quarantine, so he's technically just a Caribbean baby," Lourd explained. "I didn't know it was happening but it turned out to be kind of a blessing in disguise having a quarantine baby. But he's not a quarantine baby, because I got to keep it to myself."

The new mom saID the reason "nobody else knew" of her pregnancy was because she only told her family members.

When it came time to make the big announcement about her son's birth, Lourd revealed just how satisfying it was to share her joy with the word.

"Everyone was so surprised when we posted that little picture of his feet, and it got to just be something I shared with the people I loved the most, which was so incredible and made my pregnancy so magical and wonderful," she said, admitting she was surprised by how much she enjoyed being pregnant.

"It turned out to be the greatest experience. I got to just eat great food, hang out with the people I love, do Legos all the time," she gushed. "I loved being pregnant."

Lourd says quarantine strengthened her bond with her fiancé, adding, "We just became even closer friends, even better partners. And I think it prepared us to be the best parents."