symptoms........

my period is two weeks away so I literally just end ovulation. im experienceing a sore right nipple, weird pain in my belly almost like a bubble flipping over and over again, sometimes it is sharp pain, but most of the time is just pressure. I have slight pelvic pain. & have been nauseous for two almost three days now.. I don't know if I should get a test for it to turn up negative because it's so early or not.. also has anyone else felt this so early...? please help.