Agni Purana (Jyotisha Selections) · by Vyasa
Chapter 7 · Portents
उत्पाताः
अकालप्रसवा नार्यः कालतो वाऽप्रजास्तथा ।विकृतप्रसवाश्चैव युग्मप्रसवनादिकम् ॥ २२ ॥
In the full Agni Purana this is chapter 263, verse 22.
Women giving birth out of season, or staying childless in due season. Abnormal births, twins and the like.
Simple meaning: Women giving birth out of season, staying childless in season, or having odd births or twins are portents.
विजात्यं विकृतं वाऽपि षड्भिर्मासैर्म्रियेत वै ।
An odd or deformed birth can mean a death within six months, or fear of an enemy army.
होमः प्रसूतिवैकृत्ये जपो विप्रादिपूजनम् ।
For odd births, make a fire offering, chant and worship Brahmins. Unyoked carts moving and yoked ones not pulling is a portent.
आकाशे तूर्यनादाश्च महद्भयमुपस्थितम् ।
Trumpet sounds in the sky mean great fear. Wild animals or birds entering a village are also a sign.