Tracy is a successful business woman. Since she's already 30 years old, she wants to make a family. Her biological clock is continuously remembering her of her need to become a mom. But her boyfriend Grant gets scared from such a big responsibility -- the 3-year anniversary ring she gave her is just a turquoise -- and breaks up with Tracy. So, Tracy decides to get pregnant with a help of artificial impregnation...

Tracy has decided to become a mother. Now, she needs to find a man who will donate his sperm. She goes to the sperm bank with Charlotte to find the right candidate. When her friend David rejects her offer, Tracy realizes that her only choice is to go to a sperm bank and choose the right candidate for being her baby's father. The problem is that she doesn't have enough with the information she is provided.

Tracy faces the issue of whether or not you become your mother once you have children of your own. Through the use of the monitor, she gives us glimpses of her relationship with her mother growing up. Tracy realizes she does not want to have the same relationship with her child as she has with her mother. Hilarity ensues as she tries to change her relationship with her mom after all these years.

Tracy's brother and his wife lose their nanny, so Tracy starts asking herself how will she be able to leave as a single mother. Charlotte tries to help her with her own personal experience as a divorced mother of two girls, while Celia thinks that Tracy has failed with everything.

Days ago Tracy was planning to go on trip in Mexico, where she would go with Charlotte. Now she knows that artificial impregnation will cost her even more than she has expected, so she cannot afford the costly trip. Tracy wants to tell Charlotte what happened on the nice way that the trip is off, but everything does not goes in the way she has planned.

Tracy wants to get pregnant as soon as possible not knowing about all the stress situations that are waiting for her because of the procedure of the impregnation. When the day of impregnation finally comes, Tracy rushes to her gynaecologist, who seems to not be there. In spite of that in the end, everything finished great and Tracy finally gets pregnant, so Celia and Charlotte prepare a party for her.

Tracy meets Rick, whom she really likes, but she' not sure should she tell him that she is pregnant. When Rick asks her to go on a trip in the mountain cabins for the end of week, Tracy decides not to go. Later on, Tracy and Rick go to cinema where Tracy gets surprised when she sees her mother and Charlotte following her. What are they up to?

Tracy begins to feel the morning sicknesses kick in, and is forced to use her boss's private bathroom to throw up. She is worried about how to keep her pregnancy a secret and avoid the office gossip, but she can't escape from it. Soon everyone finds out she's pregnant, and worse: that Mr. Price, her boss, is the baby's father! When she goes to him to clear out the story, he feels proud. At home, an argument with her mother makes her realize that she has nothing to be embarrassed about, so she comes forward and tells the office the truth about her artificial insemination, settling the rumors once and for all.

Tracy refuses to abandon the fast track and change to the mommy track. No matter how hard she tries, her job duties seem to be way over her limits, so her boss hires an assistant to help her while she's pregnant. Charlotte warns her the so-called assistant will stop at nothing to take her job – much like Tracy did to the woman who had her job before her. The doctor advises her to slow down at work and she refuses to, and even her mother gives an example on how some African pregnant women are put into a safety ""hut"" until their babies are born. After a talk with her predecessor, Tracy realizes the ""mommies room"" might not be such a bad idea after all. And the best of all: her assistant tried to hard to top her that now she's becoming a mommy too, thanks to a night on the hut tub with NY executives.

Dr. Bryant runs into Tracy and Charlotte at a restaurant and Charlotte shows interest on him, which concerts Tracy. She doesn't want her best friend and her gynecologist to get involved like that, so she lies to them both about each having commitment issues. Nevertheless, Charlotte and Doug engage a quick romantic/sexual thing, which ends when Tracy accidentally tells Dr. Bryant Charlotte will be breaking up with him. The three end up on non-speaking terms, but Tracy's ultrasound exam brings them close together and gives the word ""family"" a new meaning to Tracy.

Tracy compares her own family to an ant colony. The main difference between them is that on the ant colony the ants help each other, while on her family the exact opposite is what happens. Tracy's mom asks her to organize and host the Calloways anniversary party, which makes Tracy freak out because no one will help her out. Meanwhile, she tries unsuccessfully to approach her father about her pregnancy, and only gets a few words from him when she talks to him through baseball language. At the party, Tracy makes a toast thanking her parents and saying that they showed her exactly how to raise her child, and her father surprisingly listened this time.

When her brother breaks the news he's lost all her buffer, Tracy finds herself in a tough situation financially. All the baby stuff are just too expensive and the odds of getting a raise at her job aren't good. Her mother decides then to set her up with Jeff, a guy she dated years ago who now is doing very well on the dog shampoo business. The only thing is Tracy doesn't like the guy, but has second thoughts about him when he proposes to help her raise the child. Charlotte is the one who has to bring her back to the ground and open her eyes to see she can't do that to herself or the child, so Tracy turns down Jeff's offer.

When Charlotte asks Tracy to take care of her two daughters and of her boyfriend's son while they are out for the weekend, Tracy cannot refuse. Moreover, she thinks it will help her as training as a mom. The trouble starts when Charlotte's eldest daughter and Doug's son fall in love.

Tracy decides her biological clock is ticking and she needs to start a family. She eventually decides artifical insemination is the way to go. The series shows Tracy as a struggling working Mom and along the way with her nagging Mother and her best friend Charlotte she tries to live as normal a life as possible.