NET
13 Now when the dragon realized that he had been thrown down to the earth, he pursued the woman who had given birth to the male child.
Darby
13 And when the dragon saw that he had been cast out into the earth, he persecuted the woman which bore the male [child].
KJV
13 And when the dragon saw that he was cast unto the earth, he persecuted the woman which brought forth the man [child].