Jenelle Evans has spent the last five years as an MTV star on 16 and Pregnant and Teen Mom 2. Wednesday night, however, her baby boy Kaiser makes his first appearance on her reality series.

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Evans announced the big news on Tuesday, excited and perhaps a little nervous.

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While mother and child are both fine now, Evans revealed that the Wednesday night episode of the series will be filled with drama.

Evans first appeared on the network when pregnant with her first son Jace, now five. Kaiser, born this year on June 29, is Evans' first child with current boyfriend Nathan Griffith.

While both Evans and Griffith have children from previous relationships, Griffith has a young daughter Emery, the couple would like to eventually try for a little girl. Their next child won't be too close in age with Kaiser, however, as they've decided to wait a while as they finish school. Evans has boasted numerous times that she is back on birth control, and intends for things to stay that way until they are ready for another child.

Teen Mom 2 continues on MTV with new episodes Wednesdays at 10 p.m. ET/PT.