The Compendium of Caraka 4.8.26

4.8.26

yasyāḥ punaruṣṇatīkṣṇopayogādgarbhiṇyā mahati saṃjātasāre garbhe puṣpadarśanaṃ syādanyo vā yonisrāvastasyā garbho vṛddhiṃ na prāpnoti niḥsrutatvāt; sa kālamavatiṣṭhate 'atimātraṃ, tamupaviṣṭakamityācakṣate kecit/

In a pregnant woman whose embryo is large and has acquired essence, if an appearance of menses or other vaginal discharge occurs due to the use of hot and sharp [things], her embryo does not attain growth because of the discharge; it remains [in the womb] excessively beyond time; some designate that as upaviṣṭaka.