A flattened circular organ in the uterus of pregnant eutherian mammals, nourishing and maintaining the fetus through the umbilical cord.
its from Google
a structure that nourishes the fetus
I pregnant womans body the function of the Chorion is it helps in the developement of the plecenta.
It truely actually is really normal so just come down and relax drink a lot of water and milk so you won't be frustrated and mad and grumpy the reason I know this is because my mom told me and I'm going through this now and it really lame