Does clomid make you ovulate early?

Samantha
Finished taking the last of this cycle of clomid last night (day 3-7) . I was browsing around reading some of these threads and read where someone said that clomid can make you ovulate early. So I took a ovulation test on my next trip to the bathroom and got a positive. I'm very confused....the instructions I got from my RE was to start opk on day 9 (which would be tomorrow). So is the test accurate? Is it a false positive? My cycle was late so could that have thrown ovulation off?