Renee Oteri is — in her own words — expanding rapidly!

The pregnant Bachelor star, who's expecting her third child, gave fans a glimpse of her growing baby bump as she napped alongside her adorable one-year-old son, Jax.

RELATED: Lady Gaga's Ready to Welcome a Baby With Fiancé Taylor Kinney!

"My big baby [loves] my big belly," she captioned the sweet selfie.

This pregnancy marks the second child for Renee with her husband Bruce Maynard. The 34-year-old, who appeared on Juan Pablo Galavis' season of the reality dating competition, is also mom to 11-year-old son Ben from a previous relationship.

RELATED: Ashton Kutcher and Mila Kunis Are Expecting Twins!

For more Bachelor baby updates, check out the gallery below!