There's no need to bear a son anymore; her life isn't hers to control. Even if she did give birth to a son, she likely wouldn't have the fate to raise him. And even if he were raised, he would still be subject to others. It might be better to have a princess and be at ease.
"Let's go, Lady Li should take her medicine now. Let's go and check on her," said Lady Chang as she withdrew her hand and stood up.
The servant following her nodded, feeling relieved at heart, thinking that it was good as long as she attended to the master well.
Nowadays, all of those serving around Lady Chang were dispatched from Lady Li's quarters, naturally showing loyalty to Lady Li.
Lady Chang was well aware of this and did not resist. She could not make her own decisions and had to just carry on with life as it was.