"Motherhood has come to her with such ease," the source adds of Gigi, who's yet to publicly share her daughter's name. "She is such a natural."
As for Gigi and Zayn's relationship, the source says that the pair "are so in love and having a baby together has brought them even closer."
"They share the same values when it comes to culture, family and parenting," the source says. "Gigi and Zayn both have very close relationships with their families and raising their daughter with that same loving environment is very important to them."