Early test can be done as early as 4-5 days before expected period. If it is begative wait 2-3 days and test again. You need to wait until before your period because HCG hormones that is defected by the test will be present after implantation has taken place and that happens around 5-12 days after conception. HCG level doubles at every 24-48 hours that is why it is recommended to wait a little to avoid false negative testing. I hope it turns out tha way you want it to.