I got negative opk Sunday and Monday. Yesterday morning I got 2 positive OPKs, one fmu and one smu. I was at work when I did it so wasn't able to bd right away. When I got home from work & took another one about 11hrs later it was then negative. We dtd Saturday, twice Monday and again last night. But not right after my positive. Not sure if I'm out or if there's still a chance. Had a great feeling about this month all day yesterday until I got home and it was then negative. So upset :(