There are so many test on the market. Are you using a trusted brand? I know one time I bought cheap pregnancy test and they gave me false positives. I never tried from ovulation test, but I did try with measuring basal body temps (not to mention every different position...haha). I am not sure how they work, but maybe one is more positive than the other? With us we become pregnant when we forgot about trying. Hubby went overseas with the military and the week he come back we were pregnant with twins...and that is how it happened both times (2 sets of twins-4 kids 2 and under...haha) I do feel the pain though, it took us 4 yrs of trying. Wish I could help with your question...Can you call the nurse at your GYNs office to ask them?

Well you can fix that by just having sex all the time.... lol...

But if you combine the tests with the calendar method, that might help to clear up your confusion. It's easy to find online if you just google it.