Last period was 3 days late, AF arrived for 4 days cd30. Next cycle dtd CD7&8.. temp drop cd8.. Positive opk on CD9&10.. temps back up cd9/10/11/12.. Had super horrid cramps, nausea and dizzy for 2 days and then a huge glob of ewcm but negative opk and slight temp drop. Cycles are usually 28days and regular. Can anyone advise?