04/30/2013 01:54 pm ET

'The Little Couple' Adoption: Bill And Jen Decide To Adopt Son With Dwarfism From China (EXCLUSIVE VIDEO)

We've watched TLC's "The Little Couple," Jen Arnold and Bill Klein, struggle with starting a family for a few seasons, including finding a surrogate only to later lose the child to a miscarriage. But now, their dreams are finally coming true.

This season, "The Little Couple" welcomes their new adopted son William Rijin Klein, a three-year-old from China who also has dwarfism, and in The Huffington Post's exclusive clip (above), we can see how the adoption process went for them.

Bill and Jen met with the founder of Rainbow Kids, an adoption advocacy website that helps special needs children from across the world find a home. "This kid is definitely mine," Bill says with a smile. "I mean, undoubtedly, there's no longer a question."

"The moment that we saw the picture, we fell in love with him," Bill continued. "And because we know he has skeletal dysplasia, we do want to get him home -- we want him to get comfortable with us, and we want to get him the care that he needs."

"Meeting with Tina today really made this all real," Jen says. "And I think it really kind of reassured me that, yes, we are moving in the right direction, and that we are making progress."

"The Little Couple" Season 5 premieres Tuesday, April 30 with two back-to-back episodes at 10 p.m. and 10:30 p.m. ET on TLC.

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