Dissonance by Lindsey Fairleigh, Lindsey Sparks

With her feet firmly planted in the present, Apep no longer a threat, and twins on the way, Lex is ready to settle back into her normal life-or what qualifies as normal now that her family knows everything about the secret world of the Nejerets, mythic gods of time.
But an innocent day trip to Seattle feels off to Lex the moment she steps onto the ferry, and an unsettling dream quickly turns into an all-too-real nightmare. When past and future dangers collide, Lex is forced to acknowledge that Apep might not have been the only-or the biggest-threat out there.
The past clashes with the present in this paranormal tale of ancient prophecies and warring gods. If you like Egyptian mythology, steamy romance, time-bending mysteries, and complex characters, then you'll love this sprawling time travel adventure.
MORE BOOKS IN THE ECHO WORLD
ECHO TRILOGY
Echo in Time
Resonance (an Echo Trilogy novella)
Time Anomaly
Dissonance (an Echo Trilogy novella)
Ricochet Through Time
KAT DUBOIS CHRONICLES
Ink Witch
Outcast
Underground
Soul Eater
Judgement
Afterlife