John Legend & Chrissy Teigen Planned Second Pregnancy for a ‘Long Time': They Are ‘So Excited to Make Luna a Big Sister’

Chrissy Teigen announced in an darling Instagram post Tuesday afternoon she and father John Legend are expecting their second child, and sources tell PEOPLE a luminary integrate have been anticipating to enhance their family for utterly some time.

“They have been formulation for this for a prolonged time. Chrissy is unequivocally vehement to finally share a news,” an insider tells PEOPLE exclusively about a stars, who are relatives to their 19-month-old daughter Luna.

it’s john’s!

A post common by chrissy teigen (@chrissyteigen) on Nov 21, 2017 during 1:15pm PST

On Friday, Legend, 38, told PEOPLE he and Teigen, 31, have been “working on” baby No. 2. Opening adult to InStyle about her debate to motherhood around in vitro fertilization, Teigen explained she and her Grammy-winning father started with 20 embryos and narrowed a series down to 3 after screenings.

“They are so vehement to make Luna a large sister,” says another source. “They consider Luna will do a good pursuit with a baby and they’re unequivocally happy to be expanding their family.”


A post common by Vilailuck ไชยอุดม Teigen (@pepperthai2) on Sep 30, 2017 during 9:47pm PDT

Just as ecstatic about a news is Teigen’s mom Vilailuck “Pepper” Teigen, who mostly shares honeyed photos of her granddaughters (the cookbook author’s sister Tina also has a immature daughter) on her Instagram.

Adds a source: “Chrissy’s mom is anxious to have another grandbaby on a way!”

Vilailuck Teigen, Luna, Chrissy Teigen, John Legend

Teigen and Legend distinguished their fourth marriage anniversary on Sept. 14 and brought baby Luna on debate with them for partial of Legend’s Darkness and Light Tour.

“I’m most luckier to have John’s celebrity in my life than he is to have mine,” Teigen previously pronounced about Legend. “He is insanely studious and such a dork, and he loves saying me happy.”