extrauterine gestation vs extrauterine pregnancy

extrauterine gestation and extrauterine pregnancy both are nouns.

Word	Noun	Adjective	Verb	Adverb
extrauterine gestation	Yes	No	No	No
extrauterine pregnancy	Yes	No	No	No

As nouns, extrauterine gestation and extrauterine pregnancy are synonyms defined as:

extrauterine gestation and extrauterine pregnancy: pregnancy resulting from gestation elsewhere than in the uterus

Other synonyms of extrauterine gestation include eccyesis, ectopic gestation, ectopic pregnancy, metacyesis.

extrauterine gestation (noun)	extrauterine pregnancy (noun)
pregnancy resulting from gestation elsewhere than in the uterus	pregnancy resulting from gestation elsewhere than in the uterus