I test once every evening and have been since CD 11. I have had negative tests day 11, 12, 13, 14, 15, and 16. I normally ovulate on the 14th or 15th. It's getting late for me to ovulate since I only have a 28 day cycle? Is it probably I missed my LH surge? I've ready about not ovulating in a cycle and that's usually a symptom of other health related issues which I do not have any of... I have been doing BD every other day since CD6. So hopefully I should be covered..