Reading order
| # | Title | Published | Author | Buy on Amazon |
|---|---|---|---|---|
| 1 | Baby Bonanza | 2007 | Sara Orwig | Buy |
| 2 | Inherited | 2009 | Sara Orwig | Buy |
| 3 | The Billionaire Baby Bombshell | 2010 | Sara Orwig | Buy |
| 4 | Have Baby, Need Billionaire | 2010 | Sara Orwig | Buy |
| 5 | Her Little Secret, His Hidden Heir | 2011 | Sara Orwig | Buy |
| 6 | Billionaire’s Jet Set Babies | 2011 | Sara Orwig | Buy |
| 7 | The Boss’s Baby Affair | 2011 | Sara Orwig | Buy |
| 8 | Claiming His Royal Heir | 2011 | Sara Orwig | Buy |
| 9 | Nothing Short of Perfect | 2011 | Sara Orwig | Buy |
| 10 | The Paternity Promise | 2012 | Sara Orwig | Buy |
| 11 | More Than Perfect | 2012 | Sara Orwig | Buy |
| 12 | Secrets, Lies & Lullabies | 2012 | Sara Orwig | Buy |
| 13 | The Paternity Proposition | 2012 | Sara Orwig | Buy |
| 14 | Honorable Intentions | 2012 | Sara Orwig | Buy |
| 15 | A Father’s Secret | 2012 | Sara Orwig | Buy |
| 16 | The Baby Deal | 2013 | Sara Orwig | Buy |
| 17 | Yuletide Baby Surprise | 2013 | Sara Orwig | Buy |
| 18 | The Nanny Trap | 2013 | Sara Orwig | Buy |
| 19 | Double the Trouble | 2014 | Sara Orwig | Buy |
| 20 | The Child They Didn’t Expect | 2014 | Sara Orwig | Buy |
| 21 | The Cowboy’s Pride and Joy | 2014 | Sara Orwig | Buy |
| 22 | The Nanny Plan | 2015 | Sara Orwig | Buy |
| 23 | Claiming His Own & Her Little Secret, His Hidden Heir | 2015 | Sara Orwig | Buy |
| 24 | Triple the Fun | 2015 | Sara Orwig | Buy |
| 25 | Claiming His Own and Her Little Secret, His Hidden Heir: An Anthology | 2015 | Sara Orwig | Buy |
| 26 | Triplets Under the Tree | 2015 | Sara Orwig | Buy |
| 27 | A Christmas Baby Surprise | 2015 | Sara Orwig | Buy |
| 28 | The Baby Inheritance | 2016 | Sara Orwig | Buy |
| 29 | The Boss’s Baby Arrangement | 2016 | Sara Orwig | Buy |
| 30 | The Black Sheep’s Secret Child | 2016 | Sara Orwig | Buy |
| 31 | One Heir…or Two? | 2016 | Sara Orwig | Buy |
| 32 | The Baby Proposal | 2017 | Sara Orwig | Buy |
| 33 | Billionaire’s Baby Promise | 2017 | Sara Orwig | Buy |
| 34 | The Marriage Contract | 2017 | Sara Orwig | Buy |
| 35 | The Baby Favor | 2017 | Sara Orwig | Buy |
| 36 | The CEO’s Nanny Affair | 2017 | Sara Orwig | Buy |
| 37 | Twins for the Billionaire | 2017 | Sara Orwig | Buy |
| 38 | The Christmas Baby Bonus | 2017 | Sara Orwig | Buy |
| 39 | For the Sake of His Heir | 2018 | Sara Orwig | Buy |
| 40 | Married for His Heir | 2018 | Sara Orwig | Buy |
| 41 | Billionaire’s Bargain | 2018 | Sara Orwig | Buy |
| 42 | The Rival’s Heir | 2018 | Sara Orwig | Buy |
| 43 | Bombshell for the Boss | 2018 | Sara Orwig | Buy |
| 44 | Seduction on His Terms | 2019 | Sara Orwig | Buy |
| 45 | Billionaire Country | 2019 | Sara Orwig | Buy |
Billionaires and Babies is a long-running Sara Orwig series that leans fully into one of category romance’s most recognizable combinations: money, family, and sudden parenthood. The titles make the tone clear from the start, with secret children, baby bargains, paternity twists, and emotional relationships unfolding in fast-moving contemporary settings.
Because the series is so large, most readers will use publication order as a guide rather than treat it like a tightly serialized saga. That approach works well here, since the shared appeal comes from theme and tone rather than from one continuing plot.