Glad you started asking the questions! This is my first month of officially TTC and I bought OPK kit w/20 test strips because my AF has been off for 2 months (lots of pre-spotting) so I couldn't figure out what day to say was CD1. I started testing only 1x per day (9:30pm) on CD 7, since I knew I would have plenty of strips (and they say they expire 30 days after opening). What I've read online says to test every 12 hours when you think you are closer to the window, so I started doing 9:30am and pm on CD 13. I am on CD15 and tried to convince myself that I saw a faint line last night and this morning, but when I asked DH he said, "There's no line there!" Party pooper! We had sex anyway.
According to my kit (Answers brand) the LH test line is supposed to be as dark or darker than the control line - otherwise it's a no go. Some experience a faint bleed in line until darker, but others do not.
I'm temping too and charting on Fertility Friend and haven't seen the temp spike that I'm supposed to see, so I'm hoping any day now and in the mean time "practicing".
I wish you luck and hope you get a sticky eggie soon!
Co-leader November 2013 DDCBlueEyedHopeful@hotmail.com