Kailyn Lowry of Teen Mom 2 is now a mother of two after welcoming a baby boy named Lincoln Marshall Marroquin on Saturday, November 16, Us Weekly reported.

This is the first child for Lowry and her husband, Javi Marroquin. Lowry is also a mother to three-year-old Isaac from a previous relationship with Jo Rivera.

The 21-year-old reality star told Us Weekly, "I am exhausted, but we are so excited and surprised by our new baby boy."

Lincoln was born at 8 pounds and 6 ounces at 4:28pm.

Insiders close to the couple broke the news of Lowry's pregnancy in March and told the publication, "They are overjoyed to give Isaac a sibling. Kail is thrilled!"

Lowry and Marroquin tied the knot in Sept 21, 2012. They celebrated their one year anniversary at Adventure Aquarium in Camden, New Jersey. Earlier that day, Marroquin returned home from the Air Force.

In October, Lowry confessed that she wanted to eat her own placenta!

"Just paid to have my placenta encapsulated! I figured it can't hurt to try!" she tweeted on October 17. She also addressed her haters and said, "Look up the benefits of placenta encapsulation before judging people."

So how does Marroquin feel about that? Lowry said, "Javi's iffy with it. He says he won't try it but I think he will!"

Take a look at pictures Lowry posted on her Instagram of their celebration above.

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Teen Mom 2, Kailyn Lowry