Husband not interested in having children

Q: I want to know about azal in Islam as my husband don't want to have children from marriage up till now, which is 8 years already. He don't want children  for the next 5-6 years and is insisting that I take family planning medicine but I dont want to take it because it is affecting my body badly and I get sick very fast from them. What is the right of the wife in this situation? Should I live with him or separate?

Husband leaving wife and children

Q: If husband left his wife and kids without any kind of support (deeni and dunyawi) after came back 20 months and still not support. But he wants to meet his wife only for sexual meet and wife refused him bcz the older childs doesnt want to accept again his father to enter home (bcz his badest behaviour with his family) and he came to Canada just to pick them up his mother father and go back home after few months. In this condition if wife refused to sexual contact his husband,so any sin to the wife?