On CD15 of this cycle I thought I got a positive opk. The line gradually got darker up to that point and then faded quite quickly over the next couple of days. I also felt what I thought were ovulation pains the next day and had EWCM for a couple of days either side, but my temperatures haven't risen. For some reason I thought I'd do an opk test again today CD20(probably because I am obsessed with poas) and the test line was darker than I have ever had. We are going to BD tonight just in case, but I am really confused as to why the LH rose and then fell and is now back - I know I can't ovulate twice! My cycle is slightly irregular, anywhere between 28 to 33 days and I have menorrhagia during my periods. I don't know if this would affect anything. If I do ovulate now, then would that mean I have a luteal phase defect? My CM is creamy now as well and cervix is high and can't really reach it (whereas on day 15 it was EW and low and soft). I just don't know what to think. I did a pregnancy test and it was negative. Any advice?