I had unprotected sex the 6th of November using the "pull out" method. I've been really nervous ever since. I got my period on november 26 but it has been very light. I usually have heavy periods but this one has been very light. I read about implantation bleeding and it really freaked me out ): I really don't want to and can't be pregnant right now. I took a pregnancy test last night on November 25 but it came out negative. I am still not calm because i've read that there is a chance I'm still pregnant. This is not a common period for me . Help please!