I have heard the SMEP works well but I think you do need to approach it like a military operation.....but worth it if it works for you in the long run. What type of OPK's does everyone use? Reading others posts it appears as though the second line on their OPK's appears and gets darker till O day when it reaches the desired colour - I don't think (but am not sure) that mine work that way as last month there was no second line at all (only the test line) and the next day it was definitely O day....my gyno gave me the clinical ones they use for IVF clients so I am not sure if they work the same way as others on the market? I am definitely learning a lot from this site I have been feeling a little funny the last few days (high temperature, tired, twinges in my cervix/ovary region) but did an early pregnancy test today and it was negative so I will try a little harder next month. Does dtd twice a day during O time help, or does it decrease the quality and quantity of sperm in each batch? If we so luck as to get UTD we would love a baby boy (although would be equally as happy with a beautiful girl) - does anyone have any gender selective tips?