aj-cook-third-trimester

Expectant mama A.J. Cook shared an updated baby bump photo via Instagram Wednesday.

“Happy #bump day! Yes I’m in a fitting room trying to figure out what the hell to wear to a wedding while in my third trimester. Good times. Don’t forget to watch the season finale of #CriminalMinds tonight at 9pm. Can JJ keep her secret any longer??!?!!!,” the actress, 36, captioned the image of her blooming bump in a floral maternity dress.

In March, the Criminal Minds star announced her second pregnancy on social media.

“Miracles do happen and don’t believe anyone who tells you otherwise,” she captioned an image of her growing belly.

With a city backdrop, the Final Destination 2 star struck a pregnant pose with the hashtags #blessed and #bump.

The Virgin Suicides actress and her husband Nathan Andersen – who were wed in August 2001 – are already parents to 6-year-old son Mekhai Allan.

Happy #bump day! Yes I’m in a fitting room trying to figure out what the hell to wear to a wedding while in my third trimester. Good times. Don’t forget to watch the season finale of #CriminalMinds tonight at 9pm. Can JJ keep her secret any longer??!?!!!

A photo posted by @ajcook on May 6, 2015 at 3:19pm PDT