Serena Williams shares throwback video taken before daughter Olympia's birth ...

It has almost been a year since she welcomed her first child, Alexis Olympia Ohanian Jr.

And on Friday, Serena Williams celebrated the one year mark of her heading to the hospital by sharing a string of adorable videos to her Instagram Story.

The 36-year-old tennis star bounced around and exclaimed, 'Today is the day' in the throwback clip.

Memories: on Friday, Serena Williams celebrated the one year mark of her heading to the hospital by sharing a string of adorable videos to her Instagram Story

Memories: on Friday, Serena Williams celebrated the one year mark of her heading to the hospital by sharing a string of adorable videos to her Instagram Story

Dressed in a black bra and athletic shorts, Serena was excited and clapped her hands as she uttered, 'Today is the day we are going to the hospital.'

Adding with a laugh, 'But later tonight I guess I have to get induced because you didn't come.'

Her husband Alexis Ohanian, 35, responded adorably, speaking directly to the baby, 'You're so comfortable in there.'

Big day: The 36-year-old tennis star bounced around and exclaimed, 'Today is the day' in the throwback clip

Big day: The 36-year-old tennis star bounced around and exclaimed, 'Today is the day' in the throwback clip

Excitement: Dressed in a black bra and athletic shorts, Serena was excited and clapped her hands as she uttered, 'Today is the day we are going to the hospital'

Excitement: Dressed in a black bra and athletic shorts, Serena was excited and clapped her hands as she uttered, 'Today is the day we are going to the hospital'

Smiling: Adding with a laugh, 'But later tonight i guess i have to get induced because you didn't come'

Smiling: Adding with a laugh, 'But later tonight i guess i have to get induced because you didn't come'

Serena was raised a Jehovah's Witness and during a press

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