Charak Samhita
योनिप्रदोषान्मनसोऽभितापाच्छुक्रासृगाहारविहारदोषात्। अकालयोगाद्बलसङ्क्षयाच्च गर्भं चिराद्विन्दति सप्रजाऽपि ॥७॥
Though fertile, a woman conceives only after a long time due to defects in genitals, mental worry, derangement of sperm, ovum, diet and behavior, absence of proper timing and diminution of strength.
english translation
yonipradoSAnmanaso'bhitApAcchukrAsRgAhAravihAradoSAt। akAlayogAdbalasaGkSayAcca garbhaM cirAdvindati saprajA'pi ॥7॥
hk transliteration by Sanscript