Hi I'm 20 years old and I'm not on birth control. I had unprotected sex on October 4th and used the pullout method (which I know isn't always effective) and I haven't had a period since. My period was supposed to come on October 26th and it is now November 9th and still no period, making it exactly 2 weeks late. I took a pregnancy test at 6 days late, 7 days late, 10 days late, and 13 days late and they all came out negative. I have felt fine aside from just being a lot more tired than usual and some occasional cramping which I sometimes mistaked for the start of my period. Today, at 2 weeks late, I experienced very heavy cramps and a little bit of blood when I wipe but not much at all and it's somewhat of a pinkish color. I thought it might be my period but they always start super heavy. I know implantation bleeding is supposed to occur like 10 days after conception so I'm wondering what this could mean. Is it normal? Could I possibly be pregnant?? I have an appointment at my gyno in 2 days but I'm freaking out. please help!!