Leaving the country one is working in for Deeni reasons

Q: I am from Pakistan and I am working in Dubai since 18 months. I find it always very difficult and disappointing to stay away from parents and brothers and sister. In my country I can get a job but it pays less than the job in Dubai. I have decided to leave and go back and work there on less salary than here and live with parents and brothers and I am also getting married soon in my country so I prefer to stay with all family and work on less salary there instead of staying here in Dubai away from them. My question is that according to Islamic teachings, am I taking the right step? Maybe this question seems little bit stupid but it holds great importance in my life as I want to follow my Deen in every aspect of my life. Please answer my question and help me to put an end to this confusion.

Interest based saving scheme

Q: My father has passed away and since I have no brother, the only source of income for my mother is the monthly payment that comes against the amount deposited in the saving scheme. As it is an interest based scheme, is it permissible for her to use such earnings for all her needs? She is over sixty.

Irregular bleeding

Q: My normal period cycle was around 28 days cycle or more. But few months ago I got a irregular period which caused problems for me. Now as from the past two months, I get a discharge on around 25th or 26th day as orange drop once maybe, then nothing till my 28th day, then my normal period resumes. So where do I start counting from the 25th or 28th?

Working for SAPS and growing a beard

Q: My husband works for the SAPS. As part of their dress code, male police officers (my husband is a police officer) are not allowed to keep beards (and in fact, may only keep a moustache). My husband is a new Muslim and has started growing his beard recently. Should he abide by their dress code or should we request for grace in terms of the beard rule, citing religious reasons?

Money obtained before the zakaat date

Q: The condition of Zakaat is that "One should have amount equal or greater than Nisaab amount for more than one year before Zakaat can be paid". My question is, if person receives extra money upon which one year has not passed; does he need to pay Zakaat on this extra money too which does not meet the requirement of "one year old"? Please clarify if zakaat is due only if the amount has been in one's possession for more than a year?