My period is 4 days late am i pregnant?

hello, i am 4 days late and i wanna no why. last month my period came on for 3 days and left this month it has not shown up yet and it has been 4 days after it suppose to be here i have previously had late periods for 1or 2 days but not 4 i took a home pregnancy test june 14th witch is 2 wks after my period and it was neg.i have been feeling upset but nothing major here is some of my symptoms:im can sleep at anytime, i haven't had a big appetite, i 've been having a couple bad dreams when i wake up i feel alittle dizzy i haven't been constipated but it's been hard to go, my stomache has been cramping and i feel a bit bloaded but nothing major,last night my right side was hurting me below my ribs my bf says my nipples is darker and bigger but im not sure i do have weird pain in my breast but there always sensitive so im not sure, iv'e bee getting up about 4-6am for no reason im urinating often, i find myself very aggervated and also i woe up this morning and it feels as someone beat me in my thighs i never been pregnant before so i don't know am i pregnant?thanks kila