Are ovulation test sticks reliable?

[scoobysoo]

My husband and I have been trying for a baby for approx 4 months. This month, I decided to use ovulation tests every morning for the week I'm supposed to ovulate in to pinpoint what day it happens. Anyway, the first few days were a definite negative with only one pink line on the test. I then had 2 days with one dark pink line and a slightly lighter pink line. I thought this was positive, but the packed syas this is also neg!! It then went back to one pink line. Has anyone used these things? I'm now worried that I'm not producing any eggs and seeing a Dr on Monday.

[hotpink]

i used two packets in one month when i thought i would be ovulating, but one line didn't seem any darker than the other... so it wasn't too clear as to when i was ovulating. maybe its just because my periods are getting back to normal after coming off the pill. they're blumming expensive!

[lilyfrog]

I have never used the sticks but I know the month I got pregnant i ovulated 3 weeks later than I expected. Maybe you are just not that regular!