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.
As the pregnancy grows it releases the pregnancy hormone called human chorionic gonadotropin (hCG) into the maternal blood. This hormone can be detected one week after implantation (28 days from the beginning of the menstrual period and 2 weeks after ovulation) in the blood or urine. So, pregnancy officially begins at the time of implantation but is usually not detectable until the pregnancy hormone shows up in the blood and urine.