Thank you very much for your valuable post, Dear Brother,
Yes i agree with you completely but if we say because of women
pregnancy men must provide for family and we limit this verse to it then someone can say so why should husband of a barren wife provide for her? (Pregnancy and taking houshold matters are not obligations for women in the Quran and it seems is up to couples to decide)
Or a brother must provide for his sister, even if she is barren.
Yes, it is true that pregnancy is burden for women and men do not have it but i say it is one the reasons that men should support women but it cannot be the main reason (please note the above sentence that what about a barren woman if we limit the verse to pregnancy)
Can we conclude it is a special God-given advantage to women and it does not only depend on pregnancy? But is it equality?