Negative pregnant test, can i still be pregnant?

Maybe: Too many variables left out of your history. For example, how many periods have you missed? When did you do the test relative to your last period? Did you do only one test? Do you have unprotected sexual intercourse? Did you have unprotected intercourse in mid cycle?

Yes: The typical urine pregnancy test requires that the pregnancy be far along enough to generate the hormone that turns the test positive. The testing material must be within its useful life, and done correctly. It is more likely to be falsely negative than falsely positive. That said, you could have tested too early or done it wrong.