My Pregnant Husband, The Emperor's Secret

I slept with the childless emperor, fled after getting pregnant, and was unexpectedly welcomed back to the princely mansion, where I was tasked to comfort the sickly prince. 'One bride, one groom? Deal!' I agreed happily. Later, the emperor fell ill and demanded the woman with a birthmark behind her ear—the 'Zhang San' from that night. He found me furiously, only to see me pregnant and just bowing to his cousin.