Alexandria Vera has been charged with sexual abuse. Photo / Facebook

The eighth grade teacher who got pregnant after daily sex with her 13-year-old student has turned herself in, police say.

Alexandria Vera, 24, allegedly told school district officials she had been engaging in a sexual relationship with the young boy since September, after they began flirting during a summer school session.

The Stovall Middle School teacher even fell pregnant with the eight grader's child in January, according to police documents.

Court documents show the boy's parents didn't object to their relationship. She told a school district investigator they were "very supportive and excited" when she disclosed her pregnancy.

The probable cause document said she aborted the pregnancy after a child welfare investigator questioned her. School officials say she's been removed from her job.

But she had panicked after Child Protective Services turned up unexpectedly at the school in February, to question her and the student about their relationship, and decided to have an abortion.

As investigators closed in, the teacher had gone on the run before police had a chance to arrest her.

But earlier today, authorities confirmed that the 24-year-old had turned herself in to Montgomery County police.

Vera, of Houston,Texas, now faces charges of continuous sexual abuse of a child. Montgomery County Sheriff's spokesman Brady Fitzgerald says Vera posted a $100,000 bond and was released.

Court documents reveal that she had told the Aldine Independent School District peace officer that the relationship began during a summer class.

She said that she had given the student her number on Instagram after he failed to show up to class and it had blossomed from there.

The boy asked Vera if they could hang out and she agreed. They then began taking drives in her car and kissing and soon started having sex on an almost daily basis, according to court documents.

Their first sexual encounter happened after Vera went to drop the child off, but his parents were not home. They then went back to her house.

And the couple didn't keep their relationship a secret - even at school.

One student told Eyewitness news: "[The student] like grabbed her butt and everybody saw it. And then they were talking about it."

The eighth-grade English teacher, who has one child, told police that she and the teen "are in love" and that she had been introduced to his family as his girlfriend, reported ABC-13.

She also claims that the family are accepting of the relationship and often include her in family gatherings.

According to court documents, Vera said the parents allowed the teen to spend the night at her house, after which she would drop him off at home in the morning so he could catch the bus to Stovall Middle School in Houston, Texas.

In January, things reached a peak when Vera fell pregnant with the young boy's baby - but told officers his family "were very supportive and excited about the baby", reported KPRC.

Vera decided to have an abortion however, after reportedly getting nervous about their relationship when Child Protective Services unexpectedly showed up at school in February, to question her and the student about their relationship.

She reportedly denied the relationship at the time, according to the DA's office.

The mother-of-one had her phone forensically analysed by the officer and it appears many messages between the student and teacher were consistent with what she said, according to the report.

Vera now faces charges of continuous sexual abuse of a child but police have been unable to find her to serve the arrest warrant.

Aldine ISD, the organisation that runs Stovall Middle School, issued the following statement to ABC-13: "Aldine ISD has been made aware that charges have been filed against a former Stovall Middle School teacher involved in inappropriate behavior with a male student.

"When the allegation was made in April, the teacher was immediately removed from the school and placed on administrative leave.

"Aldine ISD Police investigated the incident and turned their findings over to the Harris County District Attorney's Office.

"The safety and security of Aldine ISD's students and staff remains a priority of the school district."

Parents at the school were horrified.

"(It's) horrible for any father or any family member going through this situation," Gerson Bonilla told Click 2 Houston.

"When you send your kid to the school you think everything will be safe for them and everything. But I think this is something that is serious that needs to be investigated."