They Will Be Coming for Us by Kim Catanzarite

A young woman’s greatest dreams and darkest nightmares are pivoted against each other in this award-winning sci-fi thriller, the first in The Jovian Duology. Svetlana Peterman desires nothing more than a peaceful life with a devoted husband and a child to dote on. Andrew Jovian, an astronomer with powerful cosmos-obsessed parents, gives her both, along with a suffocating extended family and a mother-in-law obsessed with the idea of immediately having grandbabies. Svetlana does her best to settle into her new married life, but quickly finds herself at the center of an unusual—possibly intergalactic—mystery that endangers everyone she loves. With no one to trust and everything to lose, she must find the strength to fight and survive.