I'm wondering if anyone else has a really short surge. I'm also wondering if that means anything. I use the CB digital OPK. I tested yesterday around 5 pm and it was negative and again about 9 pm or so and it was negative. I tested this morning around 7 am and it was positive. Then just out of curiosity, I tested this evening around 6 pm and it was negative already. I'm glad I tested more than once a day or I just might have missed it. But has anyone else noticed that they have this short of a surge. And also, since it's back to negative does that mean that ovulation has occured already? I'm still have a bit of cramping that I thought was ovulation cramping, but then again I've been cramping for 2 days..it was worse earlier today, so maybe that was when I ovulated? Just trying to figure all this out.