Do you track your period or ovulation? You can check the chances of being pregnant based on the dates. If you have missed your period, I would recommend taking a test, or making an appointment with your doctor or nurse practitioner and get a blood test. I had 3 false negatives, after I missed my period, I tested positive about a week and a half after. Currently at 23 and a half weeks. The blood test are accurate and can test far sooner than a urine test. It is still recommended to wait until after missing your period to get the test.