'Teen Mom 2' Sneak Peek: Kailyn Is 'So Frustrated' By Baby Lincoln

The mother of two has difficulty breastfeeding her youngest son.

Kailyn struggled with disciplining her firstborn Isaac on the last episode of "Teen Mom 2." Now, in the sneak peek below, she's having more difficulty -- this time, with Baby Lincoln.

"He won't take," Kail tells her mom Suzi as she attempts to breastfeed her little boy. "Four months of breastfeeding and now he doesn't want to take it."

Suzi offers her daughter some encouragement before changing the subject. "How are you liking the whole married life? Kids? And a house?" she asks Kail, who's been caring for the two children alone while her husband Javi is away for his Air Force commitments and trying, as best she can, to cope with the inevitable feelings of loneliness.

"Being married is not what I thought it would be at all," Kailyn admits. "It's a lot of compromise, a lot of things that I'm not used to. But [I'm] trying to get through it the best I can. 'Cause I do love [Javi] and stuff."

Kailyn then tries to feed Lincoln again -- to no avail. "I'm gonna cry," she says as the baby howls. "I'm so frustrated!"

Check out Kail and her mom's entire candid conversation, and be sure to watch a new episode of "Teen Mom 2" on Wednesday at 10/9c.