Girlfriend swallowed my sperms and now is having an early period...i m not sure if its a period since its 1 week early...is she pregnant??

Here are some... Your described scenario poses an almost zero odd to conceive, but nowadays, all sexually active women should do HPT in a wk after missing expected period and repeat it in another wk if the first test is (-) or still in doubt. Meanwhile, learn more to upgrade the standard of safe sex for contraception; so, see gyn-doc for timely counseling.