LOS ANGELES, CA - MARCH 10: John Legend and Chrissy Teigen attend a basketball game between the Cleveland Cavaliers and the L
Noel Vasquez/GC Images

Through Chrissy Teigen's Instagram, the world has its very first picture of Luna Simone Stephens, her and John Legend's newborn baby girl. The model posted the photo on Tuesday (April 19), revealing the child's cute little nickname, Lulu. 

The photo's caption reads: "hi my lulu."

Much of the couple's child-bearing process has been shared on Teigen's Instagram account. The news that Teigen was pregnant hit in October, which the couple shared with a joyful photo. And on Sunday, the couple again shared the news via Instagram that their baby had been born on Thursday, April 14. Teigen and Legend's use of IVF has also been something that the couple has discussed publicly and openly. Earlier this week, Teigen told People the couple plans to use the same method again to have more kids. She said: “The number of embryos we have left is not matching the number of people I want at my dinner table, so I’ll have to do it again.”