Charak Samhita
अजन्मनि च यो हेतुर्विनाशे विकृतावपि। इमांस्त्रीनशुभान् भावानाहुर्गर्भविघातकान् ॥४३॥
The factors which are responsible for the prevention of conception, damaging the fetus and teratological abnormalities are three inauspicious factors responsible for garbhavighataka or destructors of fetus.
english translation
ajanmani ca yo heturvinAze vikRtAvapi। imAMstrInazubhAn bhAvAnAhurgarbhavighAtakAn ॥43॥
hk transliteration by Sanscript