AceShowbiz - Actor Jeremy Allen White is set to become a first-time father.

The "Shameless" star's girlfriend, Addison Timlin, announced the happy news on Instagram on Friday, June 29.

"We made a baby and my heart is bursting at the seams," the actress captioned a picture of herself and White cradling her stomach on Instagram. "Today is my birthday but my wish already came true. This is 27 and the best is yet to come."

We made a baby and my heart is bursting at the seams. Today is my birthday but my wish already came true. This is 27 and the best is yet to come ❤️

A post shared by Addison Timlin (@addison.timlin) on Jun 29, 2018 at 10:01am PDT

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"Happy birthday sweetheart," White added on the social media site. "You're gonna be the best momma, I love you."

Happy birthday sweetheart. You’re gonna be the best momma, I love you.

A post shared by Jeremyallenwhitefinally (@jeremyallenwhitefinally) on Jun 29, 2018 at 10:24am PDT

White and Timlin met on the set of 2008 film Afterschool, but their relationship did not begin until several years later, according to Us Weekly magazine.