The former Glee star and her actor husband Ryan Dorsey welcomed a baby boy in August (15) in Los Angeles, sources tell

A source tells the publication, "They are so excited to be first-time parents... It was a very easy pregnancy and birth", while another adds, "Naya was born to be a mother and is doing really great so far... And Ryan has amazing paternal instincts and has been waiting on them both hand and foot."

Rivera, 28, wed Dorsey, 32, in a secret ceremony in Mexico in July, 2014, just three months after she called off her engagement to rapper Big Sean.

She announced the pregnancy in February (15) and later blogged about her experiences.

"Being pregnant is proving to be one of the most amazing, fulfilling things I've ever done in my life," she wrote for's Moms & Babies blog.

"I finally feel like I'm really doing something in this world. I've accomplished a lot in my career up to this point and achieved a lot of goals that I had set for myself, but they all pale in comparison to the miracle of carrying a child."