The husband should help a pregnant wife , if she is having vomiting and other physical illness, mood change etc. He should cook for her, do household works etc. how all a husband can help her. It was his duty to do so.
What's important is open communication and mutual understanding between partners. Each couple should discuss and agree upon their roles, responsibilities, and expectations within the marriage. It's also important to recognize that the dynamics within a marriage can evolve over time and may need to be adjusted based on changing circumstances.
Ultimately, a successful and harmonious marriage is built on mutual respect, effective communication, and a willingness to collaborate and support each other, regardless of traditional roles or expectations.