With no explanation, label text_A→text_B with either "DON'T KNOW", "NO" or "YES".
text_A: He was born in Pavia, Lombardy, out of wedlock to Fazio Cardano who was a lawyer and jurist known for his mathematical talent, and was also a close personal friend of Leonardo da Vinci. In his autobiography, Cardano wrote that his mother, Chiara Micheri, had taken "various abortive medicines" to terminate the pregnancy; he was "taken by violent means from my mother; I was almost dead." She was in labour for three days. Shortly before his birth, his mother had to move from Milan to Pavia to escape the Plague; her three other children died from the disease.
text_B: Does this passage suggest that Chiara Micheri was herself unmarried, or possibly having an affair, when she became pregnant with the young Cardano?
YES.