Catelynn Lowell has confirmed she is pregnant again.

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The 22-year-old "Teen Mom" star announced the news by posting a black and white picture of her baby bump on Instagram.

News outlets first reported the pregnancy in May, and Lowell captioned the photo, "#it'sofficial #4months."

Fiance Tyler Baltierra posted a color version of the snapshot on his Instagram with the same caption.

Lowell and Baltierra came to fame on the MTV reality series "16 & Pregnant." The couple were teenagers when Lowell gave birth to their first child, a daughter named Carly.

The new parents chose to give the baby up for adoption, a process documented on "Teen Mom."

Some have criticized Lowell's new pregnancy, but she and Baltierra insist they are ready to have a baby.