Agh, starting to get a touch frustrated with OPKs, even though I know that patience is the key. On CDs 11 and 12, it looked like things were going in a decent direction, but in the days since the lines have been barely visible. Last cycle, if I ovulated it was likely to have been on CD17, and when previously TTC I ovulated between CD16 and 25. Is it just likely to be too early to see things starting to work up towards the peak yet and it’ll all be a bit random until the day before ov day, when suddenly things will fall into place and I’ll see a very quick, obvious surge? Sorry, it’s been over 4 years since I last did these….