Whitney Purvis and her boyfriend/baby daddy Weston Gosa -- stars of MTV's "16 & Pregnant" -- were arrested in Georgia this week after allegedly smashing the hell out of some electronics ... TMZ has learned.

The Floyd County Sheriff's Dept. tells us ... 21-year-old Whitney and 23-year-old Weston were arrested on December 12th ... after someone filed a complaint accusing the two of smashing a laptop and a cell phone.

We're told a warrant was issued for their arrests ... so cops went to their home and arrested the reality stars for criminal trespassing.

Both Whitney and Weston were taken to the station where they were booked. They were each released on $1,300 bond.

It's unclear who was watching their child during the arrest.

"16 & Pregnant" baby daddy Weston Gosa -- father of Whitney Purvis' kid -- was arrested for DUI in Georgia yesterday ... after allegedly crashing his car ... but the real reason we're posting this story ... dude's mug shot is legendary.

According to the Floyd County Police Department, 23-year-old Gosa smashed his car, and was placed under arrest when cops decided he had been driving under the influence. Police say Gosa was under the influence of prescription drugs at the time of his arrest.

Police also say Gosa was in possession of Xanax and Lorcet without a prescription, as well as a pipe with some kind of residue in it.

Gosa has been charged with felony possession of controlled substances, misdemeanor possession of drug-related objects, and DUI.

He's still in custody. He may or may not be aware of this.

"16 and Pregnant" star Whitney Purvis tells TMZ, she's had her fill of her baby daddy's slacker do-nothing lifestyle ...so she dumped the guy, and took the kid to her parents' house.

18-year-old Whitney -- who was featured on the MTV show in 2009 -- tells us, she was living with her boyfriend and their son in an apartment in Georgia up until a couple of weeks ago -- but she decided to call it quits.

According to Whitney, she ended things because her man -- Weston Gosa -- "was gone all the time.  He wouldn’t come home until 3AM in the morning ... I was home with the baby and he was nowhere to be found.”

But Whitney doesn't believe Weston was cheating -- telling us, "You know when someone is cheating on you.  He was just out with his friends all the time getting messed up ... I don’t want that around my kid.”

Whitney claims the couple was fighting constantly and she just couldn't take it anymore, so she moved back in with her parents -- and took their son with her.

Attempts to reach Weston were unsuccessful.