Is it likely to be pregnant when you take an emergency pill but still become sexually active with protection after 2 day & get your period after 6days?

Pill alters periods: It can be hard to tell if a woman is pregnant because some of the symptoms seen in early pregnancy can also happen in non-pregnant women. A urine pregnancy test gives a reliable result if done correctly. One can test about 3 weeks after sex (3 weeks after when conception might have occurred), or 1 week after missing a period. Having a true menstrual period would mean "not pregnant".