extrauterine pregnancy vs extrauterine gestation

extrauterine pregnancy and extrauterine gestation both are nouns.

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

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

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

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

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