By then she had everything she could ask for but for some reason she did not conceive for 2 years.

conceive 是动词，意思是"怀孕"或"构想"。这个词来自拉丁语 concipere，由 con-（一起）和 capere（拿、取）组成，字面意思是"把...拿到一起"，引申为"怀孕"或"构想出想法"。在医学语境中特指"受孕"。