Ex-NBA player Danilo Gallinari's pregnant wife experienced the "worst day" of her life while vacationing in Puerto Rico ... revealing she was attacked by a shark.
Eleonora Boi -- a TV reporter who got hitched to 36-year-old Gallinari in 2022 -- opened up on the terrifying incident on Instagram ... saying, "I never thought I could get attacked by a shark and I was near the shore and on a super crowded beach."
Boi stated she and the baby on the way are "fine" following the incident at the Carolina Resort beach .