gestate

(verb) have the idea for. Synonyms: conceive, conceptualize, conceptualise. Examples: "He conceived of a robot that would help paralyzed patients." "This library was well conceived."

(verb) be pregnant with. Synonyms: have a bun in the oven, bear, carry, expect. Examples: "She is bearing his child." "The are expecting another child in january." "I am carrying his child."