"I can't wait to kiss your little toes baby boy," she captioned a pic of her sonogram. "#itsaboy #MamasLittleBoy."
And it looks like mama's little boy is already getting a taste of Simmons' passion for music. On Wednesday, Simmons, who is the daughter of Run-D.M.C. founder Rev. Run, attended Beyoncé's Formation World Tour in Flushing, New York. Rocking an Adidas crop top and floral-printed leggings, she put her baby bump on full display!
Last month, the newly engaged fashion designer also used the popular photo-sharing platform to announce her pregnancy.
"We are overjoyed and super excited to receive a blessing this big!" Simmons captioned a pic of her burgeoning belly, snapped while she was on a hike in Los Angeles. "Starting a family was something that I could have only dreamed of."
Simmons has yet to reveal the identity of her fiancé and father of her baby, but judging by what she posts on social media, she appears to be very happy.
"God is great," she shared earlier this week, with a collage of selfies. "Wonderful day."