Hi ladies, went to the docs this week to get more 5mg folic acid (I am higher risk for neural tube defects) and told her that my cycle went from 30 days to 40 for the last two cycles. To me this is because I am sure I had a chemical in Feb and the two cycles since got a bit messed up. She said I should use OPKs as it gets harder to predict ov if your cycle is longer. I thought I might get the clear blue ones (not the digi ones too pricey!) just wondering how often do you use them - every day?. Anyone have any brands they prefer? Babydust to all!!