Jo Rivera is expecting his second child, and during tonight's new episode of Teen Mom 2, he shares his exciting baby news with his first child, son Isaac.

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During a preview clip of the upcoming episode, Rivera is seen telling Isaac his girlfriend of three years, Vee Torres, is pregnant. Unfortunately, Isaac, who already has one younger sibling, brother Lincoln, doesn't appear to be too thrilled with the news.

"What! What the... How about that? I want my surprise!" Isaac tells his father, then proclaiming he is not excited.

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News of Torres' pregnancy first hit the web in March.

“She’s about 7 to 8 weeks pregnant,” a source close to Torres told Radar Online. “They are getting ready to tell Isaac that he is going to have another little sibling. “Vee wanted to put the news on social media, but Joe asked her to wait so that they could finish telling their family and friends first."

Months later, Lowry responded to the news, telling MTV, "I have no plans to be in Jo and Vee’s baby’s life. If Isaac asks me questions about his new sibling, that’s fine — but other than that, I feel like they’re a completely separate family. So I don’t have any connection.”

For more Jo Rivera, tune into Teen Mom 2 season 6 on Thursdays at 10 p.m. on MTV, and check out the full sneak peek below.

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