To cite package ‘pregnancy’ in publications use:

  Kaye E (2026). _pregnancy: Calculate and Track Dates and Medications
  During Pregnancy_. R package version 0.2.1.9000,
  <https://github.com/ellakaye/pregnancy>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {pregnancy: Calculate and Track Dates and Medications During Pregnancy},
    author = {Ella Kaye},
    year = {2026},
    note = {R package version 0.2.1.9000},
    url = {https://github.com/ellakaye/pregnancy},
  }