Congrats to 'Teen Mom 2' star Kailyn Lowry! She apparently knows that the best way for an MTV 'Teen Mom' alum to stay in the headlines -- and in the black -- is to either get arrested regularly or have another baby. She chose the latter, and he's here!

Lowry and husband Javi Marroquin welcomed son Lincoln Marshall Marroquin into the world on Saturday, Nov. 16 at 4:28PM. The little guy weights eight pounds, six ounces, and we bet he has his mom's cheeks!

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

It can't be too surprising, as Lincoln was due this month, but we bet it was exciting!

Lincoln is Lowry's second tyke. She's already mom to big brother Isaac, 3, from her ex Jo Rivera.

Lowry and Marroquin got officially married in September 2012 before he had to leave for Air Force duty. They celebrated their wedding officially upon his return this year. Lowry recently made headlines after she announced she'd be saving her placenta from Lincoln's birth to take in supplement form. Hey, at least she's not eating it in soup, right?

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