fetal vs in utero

fetal

adj

  • Pertaining to, or connected with, a fetus. 

in utero

adj

  • Occurring or residing within the uterus or womb. 

adv

  • Occurring or residing within the uterus or womb. 

How often have the words fetal and in utero occurred in a corpus of books? (source: Google Ngram Viewer )