Here you can discover the real and first symptoms of pregnancy and compare them to what you are experiencing. Many of these first symptoms of pregnancy are recognizable as early as the first six to twelve days after conception. Missing periods is one of the most reliable early symptoms of pregnancy, but for those who usually have regular periods. If you were using pills, and if you think you are pregnant you need to stop taking the pill immediately. If you start to bleed within the first week you came off of the pill, you are probably not pregnant. If you take the test right now, it will be inaccurate because birth control adds hormones to your body, which can affect the amount of HCG in your urine. If you don`t bleed or you only bleed a little bit that week you stop taking the pill, go to your doctor and get a blood pregnancy test done. Through blood test it is possible to find out the accurate result if taken 5 days after conception.