According to sources and students the beloved Bronx teacher who was trying to break up a fight suffered a miscarriage after she was hit.

The teacher, who was four months pregnant, was said to be teaching her fifth period Spanish class at Exploration Academy in the Claremont section of the Bronx when the assault occurred.

As the story is told, a student who arrived five minutes late, walked up to another student who was already seated and told him to get out of his desk.

On that student refusal, the conflict escalated and the teacher tried to intervene. She was accidentally elbowed in the stomach and fell to the ground, crying.

"This is a very sad incident and my heart goes out to [the teacher] and her family," Deputy Mayor Dennis Walcott said in a statement.

In a separate incident Thursday, a 49-year-old teacher was punched in the eye by a 14-year-old eighth grader at Junior High School 45 in East Harlem. The teacher got a black eye and was treated at Weil Cornell Medical Center, cops said. The student was arrested for assault and has been suspended.

And in a third incident, a ruckus shook the hallways of Murray Bergtraum School in Manhattan.

The principal threatened to stop issuing bathroom passes if kids kept getting into fights, prompting students to organize a riot between 5th and 6th period.

One student was injured and sent to the hospital, and several others are being disciplined.

"I've been teaching since 1986," said chapter leader John Elfrank-Dana, "and I've never seen anything like it."