I used it succesfully, but it was probably a weeks or so after my period was missed.
It does have a history of false negatives - so I have heard.
If you get a negative, it is best to wait a few days then try again, if still negative, and you still don't get your period, maybe contact your doctor.
Clear blue easy apparently isn't easy at all, the design makes it difficult to read.
Lots of people recommend dollar store tests, but you really need to wait until after you skip a period as they aren't so sensitive as some of the branded tests.

Its got a bad rep, id say wait until you miss a period and take an ept

<3
gaby

Gaby, i've heard quite few people say of the ept (on these forums) that the test says not pregnant but that the pee stick has the two lines or a positive test.

Gee, I wish everybodies test went as easy as mine, then we could all be sure, striaght away

Yeah, that's what happened to me. First response so far was the only one that has come up positive and i'll let you know if I am or not pretty darn soon. I'm sure you've heard that before, but we got the papers on thursday. So I think I can start looking into a doctor next week. However, my tummy is growing and every test is negative still. Even first response so I don't know what that means. I've heard good things about the first response brand.

Does anyone else have an opinion on these tests?? Id like more