3 doctors weighed in:

So unprotected sex on the 3rd, is not likely to be detectable on the 18th with a urine test?

3 doctors weighed in
Dr. Stuart Hickerson
Family Medicine
1 doctor agrees

In brief: Implantation

Fertilization usually happens 72 hours after intrcourse if it happens then it takes a few days to implant.
Whole precess about a week. On implantation HCG starts to be released. Positve HCG possible on the 18th.

In brief: Implantation

Fertilization usually happens 72 hours after intrcourse if it happens then it takes a few days to implant.
Whole precess about a week. On implantation HCG starts to be released. Positve HCG possible on the 18th.
Dr. Stuart Hickerson
Dr. Stuart Hickerson
Thank
Dr. Thomas Heston
Family Medicine

In brief: See below

Urine pregnancy tests typically will be positive on the 1st day of a missed period.

In brief: See below

Urine pregnancy tests typically will be positive on the 1st day of a missed period.
Dr. Thomas Heston
Dr. Thomas Heston
Thank
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