That is normal, all people think in money, money never is enough you need that for survive. Ins't another person who will make you happy, you can't be happy with someone until you be happy with yourself don't matter the conditions.

May be it depends on your spouse;) Family life has her ups and downs,it's quite normal,it's quite essensial. Everything gonna be alright. The main thing is just support each other, to be in tears and in happiness;) 

Maybe they are working.

I think is important we never forget ur dreams and free time and relaxing that is allways important for the health and brain or we can stay with problems like crazy or without can't sleep well etc, but work is allways important because is what give to we support for we survive and get a better life.

When someone tells me that he has become less happy after marriage because he’s got mouths to feed at home, I don’t normally think that race and nationality would have anything to do with his personal problem.
It is amusing to see how you went from arranged marriages to government enforced birth control to North Korea. It looks like you are implying that his marriage was arranged and his agony somehow has to do with birth control. 
What made you pass a judgment like that? Your ability to generalize?

“The life after married is not happy i wish. Everyday i think of how to do and make more money .”

Uhm… what exactly do you wish? More money, is life a struggle for survive?  Without such concerns you should focus on your career before you’d marry, don’t mean to be harsh. China has a weird matching and educational system, just of the fact people mating and marrying with the assents from their parents, and the government regulates birth control, it’s too humanly degrading. But it could be more worse if you reside in North Korea.