Not possible: After intercourse on your most fertile day it takes time to result in fertilization. It then takes 5-9 days for implantation to occur. Pregnancy hormone or HCG is only made after implantation. It still takes several days for the level to rise high enough to be derectable in the urine. Test the day of the missed period or the day after for the most reliable results.
Answered 3/18/2017
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