16 and Pregnant

The most recent arrest involves 17-year-old Jamie McKay -- who was popped for simple assault back in January for an incident involving a female classmate. According to court documents, McKay punched the girl in the back of the head -- TWICE -- but the case was eventually dismissed.

As for her baby daddy -- 18-year-old Ryan McElrath -- he was arrested for cocaine and weed possession back in July ... followed by an underage drinking bust in August.

But the most shocking part -- Ryan was busted for "assault on a female" and resisting police officers back in November. TMZ has learned McElrath's alleged victim was NOT his baby mama.

McElrath is due back in a North Carolina courtroom later this month.

TMZ spoke with McElrath who told us, "All of these are false accusations."

Jamie McKay filed court docs in North Carolina ... claiming 18-year-old Ryan McElrath is "not responsible and not in a position to provide a stable environment" for their 7-month-old daughter.

In the docs, Jamie claims Ryan has a "history of driving while under the influence of alcohol" and a "history of cocaine abuse" ... and Jamie believes he's been up to no good "even after the birth of the child."

Jamie wants Ryan to be granted supervised visitation at the local Family Visitation Center -- a court-monitored facility.

Jamie also wants the judge to order Ryan to complete a parenting class and "submit to appropriate drug and alcohol assessments and testing and to comply with all treatment recommendations."

The couple is set to face off in court on June 13.

Smith filed a request for a restraining order against Jennifer Del Rio this week -- stemming from an incident in which she allegedly punched Josh in the face.

In the docs, Smith claims his baby mama is a "compulsive liar" who concocted a diabolical scheme to get pregnant -- allegedly telling him she was knocked up (even though she wasn't) so he wouldn't wear a condom.

Smith explains ... "She was giving me sonogram pictures ... that she claimed was 'our baby' when in actually [sic] it was her friend's sonogram pictures she was copying. She lied to me and my parents for 3 months saying she was pregnant. She wanted so desperately to be on 'Sixteen and Pregnant'."

As for the restraining order, Jennifer claims she never attacked Josh ... and has since filed for a restraining order against HIM ... claiming Josh punched himself in the face to set her up so she would go to jail.

A judge signed the temporary order on Tuesday morning -- requiring Jennifer Del Rio to stay at least 500 feet away from Smith at all times.

As we previously reported, Jennifer insists Josh set her up -- claiming he punched HIMSELF right before calling the cops on Monday ... and then LIED to them when they arrived, accusing Jennifer of causing the bloody nose.

Jennifer has claimed SHE plans to press charges for child endangerment -- and wants to obtain a restraining order AGAINST HIM as soon as possible.

TMZ spoke with 17-year-old Jennifer Del Rio ... who told us she was driving Josh home from a job interview Monday when he took one of their twins out of the car seat ... and asked if he could take the kid for the night.

Jennifer says she denied his request -- and tried to take back the kid -- when the baby started to cry. Jennifer says she screamed at 19-year-old Josh, "Give me back my kid. You’re hurting him."

Jennifer says a struggle ensued and she was pushed into a fence -- so she called the cops.

Josh went into his house for a few minutes, says Jennifer, and when he returned, he had a bloody nose and his shirt was ripped.

Jennifer says Josh told her that he ALSO called the cops because it was “her turn to go to jail” ... insisting he was out for “payback” from an incident back in November when he was arrested for attacking her.

When cops arrived to the scene, Jennifer says Josh “lied to the cops" when he told them Jennifer attacked him. Neither Jennifer nor Josh was arrested over the incident.

Law enforcement sources tell us ... cops in Hillsborough County, Florida responded to a battery call at the home of 19-year-old Josh Smith ... after he was allegedly attacked by the mother of his twins,17-year-old Jennifer Del Rio.

We're told Smith gave a statement to police ... explaining that he was trying to break things off with Jennifer ... when she became "irate" and "punched him in the face and pulled on his shirt."

Smith says he eventually pushed Jennifer away in self-defense.

Cops took a report -- but so far, neither Del Rio nor Smith have been arrested.

It's not the first time these two have dealt with the cops -- Smith was arrested back in November for allegedly attacking HER ... and was ordered to complete a domestic violence program.

Jennifer Del Rio -- a 17-year-old who makes her debut on the show later this month -- filed documents in Hillsborough County, Florida begging a judge to grant a restraining order against her baby daddy, 19-year-old Josh Smith.

According to the documents filed in March, Del Rio claims Smith -- the father of her twin babies -- had been "harrasing [sic] and threatened [her] saying he will have [her] raped."

Del Rio continued, "[Smith] has attempted to kidnap children." She adds, "Due to [Smith's] violence [Del Rio] is frightened for her life and children's life."

TMZ has learned Smith was arrested back in November for domestic violence against Jennifer and was ordered to complete an educational program. Smith is still in the process of completing the course.

Smith is seen in handcuffs on the promo for the new MTV show -- and we've learned the footage was shot on the same day he was arrested for the domestic violence charge back on November 4 ... just weeks after their twins were born.

In the end, Del Rio failed to appear at the hearing for a restraining order against Smith -- so the request was dropped.

Ebony -- who was on "16" season one -- tells TMZ her daughter Jocelyn was playing with her cousins in Arkansas on Saturday when she "bent down too fast right next to the fireplace"... banged her head .. and a "nice big gash" opened up.

Ebony says she immediately rushed Jocelyn to the ER -- where doctors closed up the wound with surgical glue.

Kathleen Green (above) -- the grandmother of the teen baby daddy on this week's episode -- tells us, she and her family are being targeted via texts, blog posts, and even Twitter.

Among the harassing messages ... Kathleen claims an anonymous person got a hold of her number and texted her, "You're a piece of sh*t. I'm going to bitch slap you."

But she claims her daughter Katrina -- baby daddy Isiah's mother -- got the worst of it ... because someone threatened her life on Twitter, writing, "We should do a drive by and afterwards we're going to pee on the grandma."

Kathleen Green (left) -- the grandmother of baby daddy Isiah -- tells TMZ the network "defamed" her family because "nothing that aired is what happened" in real life.

Kathleen tells us MTV set up shots and heavily edited footage in the episode -- which revolves around Isiah, his baby mama Christinna (right) and the birth of their daughter Destiny.

Kathleen says she's particularly upset with a scene involving a DNA test she bought for Christinna -- claiming she came off as a cold-hearted bitch because MTV left out one key detail -- "They didn’t show that [Christinna] had told us she had had sex with some other guy."

Now, Green says her family wants to sue the network for defamation.