Possible: Conception, as defined by the generation of a fertilized ovum, occurs within day or so of the sex. However, it takes about 3 weeks for the embryo to make enough HCG to produce a positive pregnancy test. Blood test may be done a day after a missed period. Home pregnancy tests should be done 4-5 days after the missed period. If the result is negative repeat the test in 4-5 days. Use first morning urine and follow instructions for the test carefully.
Answered 3/20/2018
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Day 19 spotting: Having unprotected sex on days when ovulation occurs can certainly make pregnancy likely. The light spotting on day 19 can be from implantation. If you miss your next period, wait another week and get a serum HCG test to see if you are pregnant.
Answered 3/20/2018
362 views
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