Celebrity moms: Catelynn Lowell nears her date with the stork, Instagrams baby bump at 33 weeks; Mom to be is ecstatic

Celebrity moms: Almost there! Teen Mom star Catelynn Lowell showed off her growing baby bump via Instagram on Nov. 21.

"Baby girl almost 33 weeks," the MTV reality star wrote on her post.

Lowell was beaming as she snapped the pic in front of a bathroom mirror. She lovingly held her growing belly in a fitted black-and-white top and blazer.

Us Weekly reported in May that Lowell and boyfriend Tyler Baltierra, are expecting their second child together. Lowell and Baltierra, both 22 years of age, put their first daughter Carly for adoption in May 2009.

The two discovered they were expecting yet another baby girl in a gender-reveal party in August.

The pair was supposed to tie the knot in July 2013, but it was eventually called off. The two seems to be more head over heels with each other this time around.

"My man is the best man," Lowell captioned an Instagram photo last month. "He is the world's most amazing father love him with all my heart and soul."