10/24/2012 09:39 am ET

Leah Messer Pregnant: 'Teen Mom 2' Star Expecting Her Third Child

After suffering a devastating miscarriage in January, Leah Messer and her husband, Jeremy Calvert, are expecting again.

The "Teen Mom 2" star, 20, who has 2-year-old twins, Aleeah and Aliannah, with her ex-husband Corey Simms, is pregnant with her third child, she confirms to Us Weekly. This will be her first baby with Calvert, whom she married in April, one year after filing for divorce from Simms.

"Jeremy and I are excited to be adding a new addition to our family," she reveals. "Being a teen mom was difficult, but I'm older and in a different place now -- married to Jeremy and excited for our family to grow."

As for her daughters, they're excited as well.

"Ali and Aleeah can't wait to meet their new brother or sister," Messer adds. "We feel incredibly blessed and look forward to this next chapter in our lives."

The soon-to-be mom of three first appeared on MTV's "16 & Pregnant" before landing a starring role as one of four teen moms on the second installment of the popular show chronicling the lives of young mothers.

"THANKS SOOO MUCH EVERYONE! #PositiveTweets makes this momma soooo happy!!!" Messer tweeted of her pregnancy news. "@Calvert505 are in such a good place! ☺ Love all of you!"

The new season of "Teen Mom 2" premieres Nov. 12 on MTV.



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