IMe and dh are ttc and I am using the home urine test for the 2nd month. I just wondered why the instructions say to test at the same time each day? I tested this morning - no LH surge, but bodily symptoms are here. So, I have just done another one (and forgot that it was supposed to be a 4 hour gap since last urination) and it is showing a surge. SO am I supposed to go for it tonight, or wait and test tomorrow morning, which should still show a surge, shouldn't it? Or should I wait until tomorrow night to do the deed? (But we are leaving for the airport at 4am Tuesday morning, so really NOT good timing!!)