im a 30 years old woman, i missed my periods this month ,i usually have a cycle of 30-32 days, i consulted a gynaec and she took some urine routine analysis test and pregnancy test and said probably its because of iron defeciancy, and asked me to take regestron for two days two tablets in the morning and two tablets in the night ,and iron capsules for a month daily at night, but it has been six days since im dont with the regestron course i still didnt get my periods, im a lil worried ,may i please know after how many days of taking regestron shall one periods?