in utero vs unhatched

in utero

adj

  • Occurring or residing within the uterus or womb. 

adv

  • Occurring or residing within the uterus or womb. 

unhatched

adj

  • Not yet hatched. 

  • Not shaded with hatching. 

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