missed period

Carol
Ok my period was due on 17th I've only been spotting light I took a pregnancy test on the 16th and 17th both negative but why haven't I bled I didn't test for ovaluation this cycle but did the previous and it said I ovaluated the 9th but also had creamy white discharge the week before I don't know what's going on I feel bloated and like full feeling anyone have any insight