WTA @nigezietv

Serena Williams returned to the top of the WTA world rankings on Monday and immediately shared the news with her unborn baby.

According to reports, the American, who is skipping the rest of the year after announcing last week that she was pregnant, took to social media to offer her first public thoughts on motherhood.

WTA @nigezietv

“My Dearest Baby, You gave me the strength I didn’t know I had. You taught me the true meaning of serenity and peace,” the 35-year-old who owns 23 grand slam titles, said on Instagram.

READ: Tennis Player Serena Williams Expecting Her First Child

“I can’t wait to meet you. I can’t wait for you to join the players box next year,” she continues.

WTA @nigezietv

“But most importantly, I am so happy to share being number one in the world with you… once again today. From the world’s oldest number one to the world’s youngest number one. — Your Mommy.”

READ ALSO: Serena Williams’ Sweet Letter To Her Unborn Baby

Ms. Williams set off a day of frenzied speculation last Wednesday with a selfie posted on social media posing for a photo in a yellow one-piece swimsuit on Snapchat with the caption “20 weeks”.