Maternity allowance is payable to you if you are a pregnant employed or self-employed contributor to social security payments, provided at least 26 weeks have passed between the day on which you became insured and the week in which your maternity leave begins. The allowance entitlement is 18 weeks, the amount depends on your salary and social security contributions made and is paid out to you in installments. After those 18 weeks you are entitled to claim another four months unpaid leave. Forms for the maternity leave and allowance claim are available here (in Greek only) and must be submitted to your local Social Security Office after it has been signed by you, your employer and your doctor. You can find completion guidelines in English here.