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Everyone give a warm welcome to the newest member of Teen Mom 2 Leah Messer and Jeremy Calvert's family! This happy couple gave birth to their daughter, Adalynn, on February 4, and they couldn't have been more thrilled.


"We were amazed — she was just so beautiful," Leah tells Us Weekly. "She reached out and grabbed hold of Jeremy's little finger. It was very emotional."


Leah already has twin daughters named Aliannah and Aleeah with her ex-husband Corey Simms, who are super psyched about being big sisters! In fact, they're more than a little hands on.


"They were trying to pick her up and carry her around," Leah says. "We had to put a stop to that! I think they get the concept now."


Awww, we're so happy that these gals are welcoming their little sis with such open arms — literally!  


Baby Adalynn's arrival wasn't without drama. Leah's water broke five full weeks before her due date, causing Jeremy to be a "nervous wreck." Luckily, the delivery went off without a hitch and Leah and Addalynn are both healthy and happy.


Check out Us Weekly for a gorgeous picture of Leah, Jeremy and their gals. Addalynn is the perfect mix of her parents!


Source: Us Weekly