I am 26 yrs old and single. i doesnt face any issues regarding periods till last month. i had my period on dec 14 and i expected my next period date would fall on jan 13 but its not happened.so consulted a doc they asked me to take a scan about abdomen, report says everything is perfect problem it may be a hormonal thing. they prescribed a tablet to have a period so i had it on jan 31. my question is can i expect my next periods date on feb 28? will it happen naturally or should i take a tablets again? because there is no watery discharge after my periods.