Yep, agree with Kathryn on that one......I used to do my OPK's at about 2pm.

I also used to have a 29/31 day cycle prior to being pregnant with Olivia, so when I started using OPK's again for #2 figured that "shortest cycle scenario" would be 28 days, so I started using OPK's on CD 11, for 5 days, to make sure I didn't miss the LH surge.........even if it means buying another box of 5 tests, I figured $20 is well spent if we get thte timing right.........