'16 and Pregnant' -- Whitney Purvis Busted for Brooming Ex-BF

Former "16 and Pregnant" mom Whitney Purvis tried to clean up -- allegedly attacking her ex with a broom -- and still got herself arrested. Again.

Purvis was busted in Rome, GA on Wednesday afternoon after police say she broke into Weston Gosa's home by throwing a wheel through 2 windows -- and then whacked Gosa with a metal broom handle.

She allegedly hit Gosa in the leg and side. 23-year-old Purvis was booked for felony aggravated assault and misdemeanor trespassing.

Purvis and Gosa are familiar with jail -- they've been arrested multiple times for everything from DUIs to stealing a pregnancy test.