Just waiting on ovulation...

Yesterday (day 14) I went in for a ultrasound to see if follicles are ready but only measured at 13. So now I'm to use my opk until Monday and hope for a positive. I can feel some light cramps today so hopefully in a day or two things will be happening in my favor. If this doesn't work we are going to try iui. I just can't seem to keep the waiting off my mind, it'll be 2 years TTC soon and four months after miscarriage, so you can guess how stressful it is to just sit and wait.