I'm totally confused.
I took femara (an alternative to Clomid) & had my ovulation tracked by u/s. So, doctor told me that I ovulated on Saturday, 29 Sep 07. We bd on Friday, Saturday & Sunday (28 - 30 Sep 07).
I tested at 12 & 14 dpo using a hpt and got a faint positive results on both times. Yet yesterday (15 dpo) I went to the doctor and tested negative there! The doctor took my blood test just to be sure and I will have the result by tomorrow.
Today I'm 16 dpo, and AF hasn't showed up yet. (not that I want her to!). So pleaseeeeeeee keep us in your prayers/thoughts, and keep your fingers crossed for a definite positive result.