RN or Nurse Practitioner? If youâre considering a nursing career, you may be wondering what the difference is between a registered nurse (RN) and a nurse practitioner (NP). What is the Difference Between an RN and an LVN?
  Answer     A blood test should be able to pick up the HCG in your blood at about 7 days after conception.     Some pregnancy tests say they can pick up â¦ HCG in your urine from about 7-10 days after conception, but most tests you have to wait to about 14 days-when your period is due.
Human Chorionic Gonadotrophin-hCG The most common test used to detect a pregnancy in the very early weeks uses hCG.The hCG hormone starts to be released into the woman's blood stream soon after the baby implants into the lining of her uterus at about 8 to 12 days after conception.