Re: home ovulation test kits??
It may take a few months for you to understand how your body ovulates. It is possible that you were ovulating so soon. Every woman is different. My dr suggested testing in the afternoon b/c most women have their earliest LH surge in the afternoon. So if you wait until morning, you may have missed valuable time. Though this is a bit more than what you were asking, I have to say that the tests worked really well for me.
You may want to observe your cervical mucus, too. It should be quite stretchy (about 1 inch between finger and thumb) and clear. This is an indicator of ovulation. It may sound yucky, but these things helped me to conceive after three years. Good luck!