hey ladies ...just wamdering abt the walmart cheapies. ive talen 4 of these test bc im a week late and having some lregnancy symptoms and the last peruod i had was last mnth but it was spotting. amd it hallened twice. ......the 4 tht ive used were negative at first then later on went to look possitive. pretty sure its an evap but just wandering abt your storiesand experience with these kind. ..and please b4 your like "possitive please note this was outside of the time frame.