Only God can help

" What do you mean by that?" When the Empress dowager heard Liu Hui Ying's words, she couldn't help but frown. " What are you trying to say? That little minx from the Ji family will never be able to recover?" 

" That's right your majesty, after what happened to sister… I learned a little about physiology and poisons because I too hate the Ji family just as much as you do, and I can assure you that concubine Ji isn't blessed to have a child, if you don't believe me then you can ask the imperial physician." 

Earlier when she was facing Ji Yu, Liu Hui Ying has taken a good look at the facial features of Ji Yu. Even though Ji Yu was indeed very pretty, her eyes were slightly sunken and her cheeks were hollowed instead of full, to others she was pretty and cute but in terms of the mystic arts, she was born with a physique of a sinner. 

Most probably she harmed a child in her last life and which was why she was destined to have no children in this life.