Simulate Pregnancy Data with Time-Varying Exposure R package simPreg version 0.1.0 Simulates pregnancy data in a time-to-event framework, allowing a time-varying exposure. Default parameters for gestational length and exposure timing are provided but may also be user-specified. Users can further specify hazard ratios for spontaneous and non-spontaneous live birth and late miscarriage/stillbirth following exposure. Software Depends: R (>= 3.5) Suggests: knitr, rmarkdown, survival, testthat (>= 3.0.0) Siri N. Skodvin <siri.skodvin@gmail.com> Comprehensive R Archive Network (CRAN) Siri N. Skodvin [aut, cre], Miriam Gjerdevik [ctb], Hakon K. Gjessing [ctb] MIT + file LICENSE (https://CRAN.R-project.org/package=simPreg/LICENSE) 2026-09-27 application/tgz https://CRAN.R-project.org/package=simPreg doi:10.32614/CRAN.package.simPreg