MOM-TO-BE RIHANNA'S ROMANCE TURNS ROCKY!

Rapper fiancé busted for street shooting

Pals are begging Rihanna, who is expecting her first child, to cut ties with Rocky, sources say

ALREADY the victim of a violent ex-boyfriend, pregnant Rihanna is being pressured by loved ones to dump her fiancé baby-daddy-to-be A$AP Rocky after his shocking shooting arrest and talk he's been cheating, insiders say.

The 33-year-old rapper, real name Rakim Mayers, was collared by cops just after he and the Diamonds songbird flew into L.A. via private jet from her Barbados homeland. Both were blindsided.

"Her friends and family are in a total panic and begging her to walk away from Rocky and his troubles," tattles a tipster.