the.com/pregnancy
the only condition where growing a skeleton inside you counts as good news.
means The state of carrying a developing offspring inside the body, from conception until birth.
from From Latin praegnans, meaning "with child" — built from prae- ("before") and a root possibly related to gnasci, "to be born." So the word literally carries the sense of being "before birth," a body in the waiting room of new life. It entered English in the 16th century, with "pregnancy" arriving as the noun for the condition the older adjective described.
organ shiftInternal organs literally rearrange to make room
shared cellsBaby's cells stay in mother's body for decades
extra bloodVolume rises by nearly fifty percent
heart growsThe heart enlarges to pump for two
length quirkOfficially counts from before conception even happens