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.
High sensitivity tests are able to detect early pregnancy, when the HCG concentration in urine reaches 20-25 mIU/ml. There are also extra-sensitive 10mIU tests, but most women still prefer the first ones. They are reported to be more stable. Implantation usually occurs on the 7-10th day after ovulation. Still, you should take into account that the level of the HCG-hormone doesnât reach the expected mark right away.