 [ Symptoms ] i had unprotected sex i took plan b and now i have my period 2 weeks early and its lighter then usual am i pregnant  i have been waking up in the morning not feeling 100 percent i have been drinking more water then usual and i have been more tired i took plan b about 6 hours after sex and its been about a week since i had the unprotected sex i am scared i might be pregnant and this is not my period its just spotting [ Disease ] hi your problem could be from plan b it does tend to through periods off for some time this could be the reason for you having a lighter period but if your still worried go see your doctor and get a pregnancy test done hope this helps good luck