The 36-year-old actress hit the beach in a bikini on Tuesday (July 18) while on vacation with her family in Lahaina, Hawaii.
Jessica kept her bump hidden for most of the day in a super cute cover-up but it could be seen while she lounged in the sun.
This will be baby number three for Jessica and her husband Cash who are already parents to nine-year-old Honorand five-year-old Haven.
The couple announced the pregnancy in a sweet Instagram post where Jessica, Honor and Haven carried one, two, and three balloons!
FYI: Jessica is wearing a Tory Burch bikini, a ViX cover-up, and a Janessa Leone hat.