Tinabina, your boyfriend will not be able to sponsor you here in Qatar as you say he is your boyfriend not husband. Every expat needs to have a sponsor.

You could either get married before you arrive here or you will have to look for a job in your own right before you arrive which will offer its own package.

It is against the law here for non married partners to be living together. However I know many couples who do this but it only takes one person who does not like the situation and report you to the authorities. The consequences of this can be lashings and deportation.

My advice if you are seriously considering this move - get married then your husband can sponsor you.

Look for previous threads - much has been written about this very subject.