No period at the end of my first pack of birth control pills am i pregnant ? is this normal? i started the 21 day pack the sunday after my period...

Can do a preg. test: Using birth control methods is a full-time job. If a person doesn't use it all the time, every time... then babies can happen. Once in a while, pregnancy happens even when one uses birth control very correctly. 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.