Kourtney Kardashian shared the first photo of her baby son, Reign Aston Disick, on Instagram Thursday.

Introducing Reign Aston Disick

Reign Aston was born three months ago, and has been kept out of the media by his reality tv star parents, Kardashian and Scott Disick, since his birth. Kardashian finally gave fans their first glimpse at her youngest bundle of joy, writing, “My little turtle dove angel baby boy Reign Aston Disick.”

My little turtle dove angel baby boy Reign Aston Disick.

A photo posted by Kourtney Kardashian (@kourtneykardash) on Apr 2, 2015 at 10:00am PDT

Reign Aston is Kardashian and Disick’s third child. The two are parents to 5-year-old Mason and 2-year-old daughter Penelope.

After Reign was born, Kardashian teased his arrival on Instagram with a photo of Penelope standing by baby Reign Aston’s baby carrier, but he was covered by a blanket.

Brothers and sisters.

A photo posted by Kourtney Kardashian (@kourtneykardash) on Jan 15, 2015 at 5:47pm PST

Scott Disick Returns Home From Rehab

Reign’s public debut comes just weeks after Disick returned home to LA from a short rehab stay in Costa Rica. Disick’s struggle with anger issues and alcohol have been documented on the Kardashian’s various reality television shows, most notably Keeping Up With The Kardashians, and the father of three opened up about his struggles in a recent interview with E! News.

“Everyone knows I’ve struggled in the past with a lot of different things and I’m a work in progress, so any time I can try to better myself, I’m trying. But listen, I’m not perfect and I never claimed to be,” Disick said.

As for any plans for baby number four, Disick said right now he’s happy with his family of five.