Mahabharata 14.18.5

शुक्रं शोणितसंसृष्टं स्त्रिया गर्भाशयं गतम्क्षेत्रं कर्मजमाप्नोति शुभं वा यदि वाशुभम्

śukraṃ śoṇitasaṃsṛṣṭaṃ striyā garbhāśayaṃ gatamkṣetraṃ karmajamāpnoti śubhaṃ vā yadi vāśubham

Our plain-language meaning of this verse is waiting for scholar review.