Am i pregnant? im eighteen and have just recently started having unprotected sex?

I am eighteen years old and I have just recently started having unportected sex, the first time he cummed in me I was so worried I was pregnant the time around I was supposed to start my period I took a pregnancy test and it came out negative the next day I started my period and I felt so relieved but then I read about 'implantation bleeding' I don't think I had that because I had a heavier flow than spotting but I took another prego test after my period just in case and it came out negative again. I had unportected sex June 4th but we used the' pull out method' then I checked my ovulation Calender and it showed that I was at the end of my ovulation period when we had sex. Now I'm supposed to start my period around June 22 or 23 and I have no symptoms of pregnancy besides getting a minor yeast infection, sore nipples (but I think its cause of stress or because my boyfriend sucks on them too hard, because he does) a slight back pain, and constipation (but I've had problems with that for a while now because I don't eat right I guess) I do not have fatigue I'm a very active teen and I can run 3 miles right now if I waned too, I don't have nausea and I don't have any weird craving? In fact I don't even get that hungry anymore. *note that I party and I like to get drunk. And whenever I had sex I wasnt sick drunk just to the point where I was feeling good. I heard that alcoholism can lack fertility. Sooooo am I pregnant?