Had my April period on 6th and had sex on 30th. May period came on 9th but was just 2days and half and was not as heavy though. June own came on 14th and seemed normal. Earlier this July I was having this watery and whitish discharge no raw eggwhite so I don't even know if I ovulated. Got a blood pregnant ttest dt says negative. Now am having cramps 5 days to my expected period. Why?