its not likely that you were ovulating at that time (going by a calculator). well you can get pregnant on pre ***. and you took a test and it was negative so i would say your not pregnant. what you had was maybe something from the sex. maybe it was rough or he tore you or something. who knows.
take a test in a few days, or get a blood test and get you answer
i did take a test but it turned out negative.. but im still feeling the same way
so u had ur period may 4th? then had sex may 25th which is the day your questioning getting pregnant? so wouldn't that then make your period about 2(ish) weeks late? the best thing to do at this point is take a pregnancy test and go from there. the light spotting/turned heavy may have been a period or not.