TTC trying to figure out if I am prego helppp plz

[kayjayy]

Okay...My fiance and I have been trying for a long time with now luck...recently he left for marine boot camp...nothing but eating healthy..water..and no toxins..he came home april 26 2014 and I had just gotten off my period two days before..he was only home ten days and we have sex at least five times and some of the days were fertile days....and the last one was right after I stopped ovulating...I am ALWAYS on time with my period if not a day ahead...after he left I was supposed to start on may 14 2014 and I was four days late( never happens ever) no symptoms of my period at all then all of a sudden I saw a little pink on my toilet paper..I usually have a very heavy flow the first few days and it has been pretty light and mostly pink with some red..cramped a LITTLE bit yesterday other than that my stomache just feels odd and now little bloated...took a test when I was two days late just a dollar one from the follar store came back neg....could I be prego?