I'm so paranoid that my timing is always off, I'm at day 11 post iui and wonder if the ovidrel shot always works in the time period they tell you 24-36 hrs, i heard sometimes it can be up to 48 hours....does anyone think it could be longer than that....I've read to trust your DR but I'm getting so discouraged, feeling doubtful again...I thought 3rd time would be different...just so worried.