Can i end my birth control pills early to induce a period? need to end pregnancy fears

Or check preg. test: A urine pregnancy test gives a very reliable result 3 weeks after sex (3 weeks after when conception might have occurred), 1 week after missing a withdrawal period, or 1 week after starting a "weird" period. If done sooner, a positive result is likely real, but a negative result may be due to testing too soon, and thus lead to a repeat test. Tests are inexpensive and are sold in stores everywhere.