An insured person is not required to pay the premium for the period from the month preceding the month that contains the expected date of childbirth (in a case specified by Ministerial Order, the date of childbirth; referred to as the "expected date of childbirth" in Article 106, paragraph (1) and Article 108, paragraph (2)) (hereinafter in this Article referred to as the "month of expected childbirth") (in the case of a multiple pregnancy, the third month before the month of expected childbirth) to the second month following the month of expected childbirth.