Jennifer Gates made her mom, Melinda, extremely happy after making her a grandmother.

Jennifer announced the exciting news of her safe delivery on her Instagram.

She posted a snapshot of herself and her husband lovingly cradling their baby's feet.

The couple donned matching cozy sweaters in the image.

The new mom revealed in her caption that her daughter was healthy and doing fine.

Melinda and her other daughter, Phoebe, left hearty comments under Jennifer' post.

While the philanthropist revealed that her heart "overflowed" with joy, Phoebe, dropped three red heart emojis.

Other well-wishers sent congratulatory messages to the young family.

Melinda earlier threw a lavish baby shower for her eldest daughter, Jennifer.