 [ Symptoms ] is it possible for a woman to get pregnant seven days before period i have sex 7 days before period and missed period wiil you get pregnancy 7 days before period [ Disease ] current home pregnancy tests hpts are advertised to be sensitive on the first day of a missed period—or perhaps a few days before in the most recent review of accuracy of hpts published in august of 2011 such claims were tested one brand first response® detected 97 of pregnancies on the first day of a missed period the ept® manual 54 and digital 67 and the clear blue® manual 64 and digital 54 tests all detected fewer actual pregnancies these results may reflect that the first response® could detect as little as 5 5 miuml of hcg in the urine while the other two brands could detect 22 miuml generally speaking a reliable pregnancy test in a doctor is office should be able to detect a level of 22 units of hcg or higher remember it takes an implantation to produce hcg to trigger a test in a study where day of implantation was documented with a sensitive blood test it was determined that 10 of viable pregnancies were not yet implanted by the first day of the missed period having read all this you can now understand why a gyn may recommend using a hpt twice if the first instance is at the time of missed flow about 97 of viable pregnancies will have implanted by seven days after the first day of missed menses taking a second reading can also enhance accuracy where your hpt is not one of the super sensitive brands 7 10 days