I started my period January 1 2013. I had unprotected sex the first, second third day of my period and I also had unprotected sex a day after my period ended which it was on the 7 of January. I was expecting my period on February 1st but I didn't Get it so I took a pregnancy test on the 3 of February and it came out negative and on February 5 I took another one and it was still negative so today February 6 I got my period but without me feeling it or having pain or cramps like I usually do. Lately I have been wanting to eat salty and sour stuff I'm also very tired and sleepy . Can that mean that I'm pregnant or not?