I am on the birth control pill. Last month my period was very crazy, started several days early and lasted past the usual end day.(this has happened before on other brands of birth control) This month my period came when it was supposed to but was literally one spot on the toilet paper when I went to the bathroom and now 2 days later, have had no other bleeding-NONE, my period is gone, literally lasted 2 seconds (this has NEVER happened). I took a pregnancy test and it was negative but I am wondering if I could still be pregnant, what do you think?