Benjamin Bratt, Kate Walsh

Addison is not wasting any time on her mission to have a baby.

In the Season 5 premiere of Private Practice, we'll discover that Addy's mystery man from last season is not only a doctor, he's a fertility specialist! "Ding, ding, ding," Kate Walsh says with a chuckle as it appears evident that Addison's wish to have a baby may actually come true this season.

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However, you can expect things to get very complicated since Addison reunited with Sam (Taye Diggs) in the season finale after sharing a kiss with Jake (Benjamin Bratt).

Check out an exclusive first look at the season premiere of Private Practice, airing Thursday, Sept. 29 at 10/9c on ABC.