Im a nurse, have been for 27 years, this is not considered abortion.. Its taken before there is any consideration of a fetus forming, It also doesnt work during ovulation. Its birth control on steroids, meant to prevent, not terminate.
"Each pill contains levonorgestrel, a synthetic version of the hormone progestin. Levonorgestrel has been used in birth control pills for over 35 years. Plan B One-Step contains a higher dose of levonorgestrel than that in regular birth control pills."