In court documents obtained by
KOMO, the prosecution claimed the 31-year-old told police he had beaten his wife and shoved her against a wall after taking methamphetamine that day.
Sweeney then noticed that his wife looked unwell, so he searched online for information about side effects of head trauma, prosecutors said in the charging papers.
Officials claimed Sweeney called 911 when he noticed that Chaipis had stopped breathing.
According to court documents, doctors discovered that Chaipis was about eight weeks pregnant when she was admitted to the hospital, according to KOMO.
Chaipis was reportedly put on life support after suffering a possible skull fracture.