Although Yun Qian knows that in the short term, even if she can cultivate, her husband won't let the issue of having children stop her cultivation.
But...
Miss Yun has enough time right now, so she needs to prepare in advance for future events.
Yun Qian has been unable to cultivate thus far because her Elixir Field requires the Guan Yuan and Hero Jade Spring, which are meant for her future children.
Currently, she has no children, so how could she let other things occupy her daughter's place?
Thus, even though she knows in her heart that not being able to cultivate will worry her husband, Miss Yun still chooses to protect her Hero Jade Spring amidst the choices.
As for whether there's hope that her husband will be busy for her cultivation... perhaps there is, but the former Yun Qian, if she knew of a way to achieve both, would not have deliberately kept Xu Chang'an worried.
