Here's what rhymes with intrauterine.

Consider these alternatives

hormonal / nonhormonal fetal / people implantation / operation defibrillation / relation foetal / total actuation / operation prematurity / security device / price endometriosis / tuberculosis devices / prices electroencephalography / encephalography insemination / information echocardiogram / can ambulation / relation hyperventilation / information myelination / relation womb / whom implanted / advantage stimulator / later penile / senile vaginal / final