Gavin and Stacey - Season 3

Following her and Gavin's decision to try for a baby, Stacey attempts to get a new job to earn extra money and is given a tough mock interview by Bryn. Meanwhile, Nessa takes baby Neil to see Smithy in Essex, which angers Dave who is left at home with Nessa's father. After a drunken night of beer and curry at Mick and Pam's, Smithy and Nessa wake up in bed together.

Gavin and Stacey visit the doctor where they learn that Gavin has a low sperm count. Pete and Dawn renew their vows with Smithy giving Dawn away, and Smithy jokingly offers to have sex with Stacey in order to be a sperm donor. Smithy and Dave have a confrontation at the reception, and Smithy tells Dave that he slept with Nessa.

When Pam and Mick arrive in Wales, everyone hits the beach. Smithy makes an unexpected appearance and declares a truce with Dave regarding Nessa. Gavin and Stacey decide that they will keep trying for a baby until the New Year, and if they are unsuccessful they will look into other options.

Nessa and Dave's wedding day arrives. Stacey has some exciting news for Gavin - she's pregnant at last. Smithy walks in on the wedding and tells Nessa that she should not marry Dave because he knows the only reason she wants to marry Dave is so Neil has a father, which he's already got in Smithy. Dave admits that he knows Nessa never loved him. The two of them shake hands, and Dave leaves the church. The episode cuts to 6 months later, where we see that Stacey is heavily pregnant, and Smithy is living in Barry Island with Nessa and Neil.