San Luis Obispo County Victim Services. 1  San Luis Obispo County District Attorney's Office. Courthouse Annex Room 384. 2  Victim/Witness Assistance Center. Contact: (866) 781-5821| Email: victimwitness@co.slo.ca.us.
1 - 4 of 4 answers. 1  Testing a week after ovulation is way too early. 2  You can implant 6-12 days after ovulation, plus add 3 days to build enough hcg in the system to be detected. 3  The first day of my last period was May 3rd.  The first day of my last period was May 3rd.
2. How soon after unprotected sex can I do a pregnancy test? If you have irregular period or are not sure when you ovulated, you can do a urine home pregnancy test 14 days after you last had unprotected sex. However for accuracy of result, it is recommended to do the test 21 days after intercourse. For those of you who want to test earlier than a urine test, you can visit your doctor for a blood pregnancy test which can help you determine if you are positive within 3-4 days after implantation or about 6-8 days after fertilization and ovulation.