The pregnant wife of slain NYPD Officer Didarul Islam has given birth to a baby boy at a Manhattan hospital, officials said Monday.

Mayor Adams joined the widow, Jamila Akhter, at Mount Sinai Hospital Sunday night after she went into labor and planned to stay with her until she gave birth.

“We’re really overjoyed,” NYPD Commissioner Jessica Tisch said Monday. “Jamila … gave birth to a beautiful baby boy last night.”

The boy’s name is Arham, according to Tisch

“We’re really excited,” Adams said. “God works in mysterious ways.”

Didarul, 36, was one of four people killed last month at 345 Park Ave., a Midtown office skyscraper, on July 28 by Shane Tamura, who drove from his home in Las Vegas and opened fire as soon as he entered the building, police said.

Islam was promoted to NYPD detective at his funeral. He and his wife had two young sons already.

Islam’s father, Abdur Rob, suffered a minor heart attack after rushing to New York-Presbyterian Hospital Weill Cornell and being told that his son had not survived the mass shooting.

Rob began screaming that Didarul was his only son and was expecting a baby he was now never going to meet, NYPD Chief of Department John Chell said on Fox 5’s “Good Day New York” last month.

Islam had been a cop since 2021 and was assigned to the 47th Precinct in the Bronx.

Arham is held by his two big brothers, Ahyan and Azhaan. (Jessica S. Tisch/X)

He was in uniform working a paid security detail in the building at E. 51st St. authorized by the NYPD when Tamura stormed inside with the assault rifle and started firing, hitting him repeatedly in the torso.

After killing three more people, then shot himself, leaving behind a suicide note in which he said he had CTE, a brain injury a number of NFL players have been diagnosed with, and asked his brain be studied for the disease.

Tamura played high school football and police believe he targeted the building because it is home to NFL headquarters

One man shot and wounded by Tamura in the lobby works for the NFL. Police believe his true intent was to take an elevator to one of several floors that house the NFL. Instead, he went to the 33rd floor, killing a Rudin Management associate before killing himself.