Jamie-Lynn Sigler is Officially a Mami!

It's a celebrity baby boom! Our favorite stars are giving birth back to back.

According to People, Jamie-Lynn Sigler and her fiancé Cutter Dykstra welcomed a son named Beau on Wednesday.

“Jamie Lynn Sigler has given birth to a healthy baby boy today, August 28th! Father is baseball player Cutter Dykstra,” her rep told Just Jared.com in a statement. “This is the first child for both. Both mother and baby are doing great!”

The couple announced they were expecting in February -- two weeks following their engagement.

Congratulations to Jamie-Lynn and Cutter on their growing family! We can't wait to see baby pics.