Hello, I've been using the clearblue ovulation tests for the first time this month. Last month my cycle was 31 days. I have been using the tests over the last week and was getting negatives. I tested on Saturday late afternoon, still got a negative despite lots of ewcm, we dtd Saturday night and then on Sunday late afternoon (cd 16) I got a positive result. Hubby was away so we couldn't dtd however when I tested today after work, I got a negative again. I thought that the tests are supposed to identify two days when you get higher surges, however I only got 1 day. Do you think we have missed out this month or whether doing it the day before the positive result could still be ok? Any thoughts would be welcome!