Having given up on finding the man of her dreams, Theodora Thompson, decides to become a single mother via an anonymous sperm donor. When a mix up at the clinic occurs it is discovered the donor, was in fact never a donor at all but rather a man interested in becoming a father - with his wife. With the new couple making an unexpected appearance, they long to meet the children and be involved in their lives. Now Teddy must adjust to the idea of motherhood - without the single part.