When u have your period three weeks early does that mean you can b pregnant? and if so can u please tell me when is the best time to take a test?

No, yes: Early period doesn't signify pregnancy. Best time to take pregnancy test is 4 weeks after last menstrual period (lmp). In other words, check after you've missed your period. If you want to get pregnant but your test is negative, go see your family doc for prenatal vitamins. If test is negative & you don't want to get pregnant, talk to your doc about birth control. Then make partner wear condom.