Home Planet, by Tiffany Nieslanik

Her mission was to find humanity a future. Instead, she may have to decide whether humanity deserves one.

Three days before astronaut Bryn launches on a solo mission to explore Caerus—a distant, habitable planet that may be Earth’s last hope—she discovers she is pregnant. If Star Force V finds out, she could lose the mission she has spent her life training for. So Bryn keeps the secret and finds herself aboard the Elpis, leaving behind her husband and an overcrowded planet running out of time.

But space brings truths Bryn was never meant to know. Her body begins to change, the ship’s AI becomes her only ally, and the people who sent her into the stars may have been hiding the real reason she was chosen.

Propulsive, intimate, and full of wonder, Home Planet is a story of identity, motherhood, power, and one woman’s fight to protect the people—and planets—she loves.