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November 17th, 2013, 08:59 PM
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Libby22 Libby22 is offline
Mega Super Mommy
Join Date: Feb 2010
Location: New Zealand
Posts: 4,081
1. Timing of Implantation
A pregnancy test detects the presence of the pregnancy hormone hCG (human chorionic gonadotropin) either in the blood or in the urine. The hCG in the urine comes from the hCG in the blood after it was filtered through the kidney. After ovulation, the egg gets fertilized and travels through the fallopian tube toward the uterus. This travel takes an average of a week. Implantation, the attachment of the fertilized egg in the lining of the uterus, occurs on average about a week or later after ovulation/fertilization, but it can happen as early as six days and as late as 12 days after fertilization/ovulation. At the time of implantation the placenta starts making the pregnancy hormone hCG, which then enters the blood stream. How early pregnancy can be detected depends on the pregnancy hormone hcG which can be detected in the blood about three to four days after implantation. Urine hCG can be detected about two to three days after blood hCG can first be seen. Detection of hCG depends on timing of implantation, so hCG can normally be detected in the blood between nine and 16 days after ovulation (HPT: 12-19 days after ovulation).

So, to sum things up, some women may not experience implantation bleeding (if they experience it) until 12DPO. After that, the HCG hormone detected in early pregnancy tests wouldn't be able to be detected for another 5 days or so. This means that some women wouldn't get that BFP until 19DPO. I found this information very helpful!! I'm really hoping that i'm experiencing implantation bleeding!! Good luck and baby dust to you all!
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