ectopic gestation vs pregnancy

ectopic gestation and pregnancy both are nouns.

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

As nouns, pregnancy is a hypernym of ectopic gestation; that is, pregnancy is a word with a broader meaning than ectopic gestation:

ectopic gestation: pregnancy resulting from gestation elsewhere than in the uterus
pregnancy: the state of being pregnant; the period from conception to birth when a woman carries a developing fetus in her uterus

Other hypernyms of ectopic gestation include gestation, maternity.

ectopic gestation (noun)	pregnancy (noun)
pregnancy resulting from gestation elsewhere than in the uterus	the state of being pregnant; the period from conception to birth when a woman carries a developing fetus in her uterus