In New York City, Zoe runs a thriving pet shop alongside her friends, Clive and Daphne. Once successful in the corporate world, particularly in the Internet sector, Zoe felt unfulfilled and longed for a more meaningful life. After her dog, Nuts, almost died from the effects of a puppy mill, she dedicated herself to ensuring that pets come from reputable sources. Notably, Nuts navigates life with special wheels in place of his back legs.
Facing the ticking biological clock, Zoe is determined to have a child before it's too late. With her desire for a significant relationship unfulfilled, she opts for artificial insemination. As she waits for the procedure, a flashback reveals her conversation with her friend Mona, who tries to dissuade Zoe from having kids, sharing her own struggles as a mother of four.
After much contemplation, Zoe considers choosing Clive as the donor but ultimately decides against it, opting for an unknown sperm donor instead. The experiences leading up to her insemination journey are filled with hope but also uncertainty, especially knowing that the first attempt might not be successful.
One rainy day, Zoe leaves the doctor's office, beaming with joy, only to awkwardly encounter Stan, who mistakenly gets into her cab. Their initial meeting turns into a comedic dispute over the cab, signaling the start of an unexpected connection. At a farmer’s market, Zoe and Mona stumble upon Stan and Louie, who are selling gourmet goat cheese. Despite Stan's belief that Zoe is tracking him, she insists she's only interested in muffins, and fate seems to play its hand with a flirty girl interrupting their chance at connection.
Their path crosses again when Zoe attends a book signing by Cesar Millan. Yet another argument arises over Stan’s accusations that Zoe is following him. After a series of ups and downs, they agree to go on a date, which Zoe creatively plans at an ethnic fast food joint.
To expand her support network, Zoe joins a quirky single mothers' support group, led by Carol. As she frequently converses about Stan with Mona at the gym, their relationship evolves. Their second date takes a misfortunate turn when wine spills on Zoe’s dress, culminating in a humorous moment where the candles ignite the picnic setup. Despite the mishaps, they share laughter, deepening their connection.
Upon returning home, Zoe discovers Nuts has vomited and finds a pregnancy test confirming her suspicion of pregnancy. The exciting news leads her back to Dr. Harris, where Zoe's joy is palpable. Stan later invites her to his family’s farm, where they share an intimate moment. However, the revelation of her pregnancy leads to tension between them, triggering discussions about their futures.
As their relationship faces challenges, Stan begins to embrace the idea of fatherhood. Frequent visits to Zoe's home and shared doctor's appointments illustrate his commitment. An ultrasound reveals they are expecting twins, prompting heartfelt discussions in the park about parenthood and their responsibilities.
Zoe reflects on her past during visits to Nana, her guiding light who raised her through tough times. Meanwhile, Stan comforts Zoe, remaining by her side as they navigate the complexities of impending parenthood. However, misunderstandings and insecurities arise, particularly when Zoe discovers Stan's ex-girlfriend is concerned about his future. This leads Zoe to believe Stan does not want children, driving a wedge between them.
After some time apart, Zoe receives a new stroller, a gesture that makes her realize Stan is genuinely interested in being a father. At a wedding where Nana is finally married, Zoe's water breaks during the festivities, sending Stan into a panic. The couple reaffirms their love and commitment amidst the chaos, leading to the birth of their twins—one of whom is named Penny.
Later, at the grand opening of Stan's new store, he proposes to Zoe, solidifying their bond. However, just as life seems settled, Zoe experiences morning sickness, hinting that they may soon be navigating parenthood once again.
