Miss a pill on 11/29 second day of week 3, took 2 pills the other day. had sex 11/28 the day before but took that day's pill. negative pregnancy test 12/5,6. should i concern about pregnancy? norethindrone acetate and ethinyl estradiol 1mg/ 0.02mg?

We can answer with more certainty if we know when your expected period was. However, because she took 2 pills on the day after, you should be safe.

Conception occurs within day or so of the sex. It takes about 3 weeks for the embryo to make enough HCG for 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.