Alec Baldwin will soon be a father of four!

The 57-year-old actor revealed on Instagram that his wife, Hilaria Baldwin, is pregnant again! In the sweet shot, the 32-year-old yoga instructor holds a blue teddy bear and she shares a kiss with Alec.

"Ireland, Carmen, Rafael, Hilaria and I are excited to share with you that we are going to have another little addition to our family," he wrote alongside the photo. "Another little boy coming this Fall."

The couple has a 2-year-old daughter, Carmen, and welcomed son Rafael last July. Alec's 20-year-old daughter, Ireland, is from his first marriage to Kim Basinger.

Hilaria shared frequent updates via Instagram throughout her last pregnancy, including posting an underwear selfie just two days after giving birth. "I believe it is important to accept and love our form after going through a bit of a battle bringing life into this world," she wrote at the time.

Meanwhile, we already know Ireland is going to be a supportive big sister.

In other baby news, The Bachelorette star Emily Maynard is pregnant with her third child! Get all the details on the newest addition to Bachelor nation in the video below.