"📸 of me in 🇧🇷 by Channing Tatum 🔥" she captioned the post.
"Becoming a mother is quite simply the absolute best most incredible thing that has ever happened to me 💕," Jenna captioned her announcement pic on Instagram. "@stevekazee you are a gift from above and i couldn’t be more excited to be expanding our family together...! Thank you guys for all the love!!"
Jenna and Channing split in 2018 after almost a decade of marriage and share a daughter, six-year-old Everly.
Although Channing has yet to comment on his ex-wife’s pregnancy announcement, a source told told E! News. "He is happy for her and was very supportive."