i didnt come on my period till 9 days late and im always on time, it is lighter than usual and also lighter in colour, ive been experiencing relly bad cramping which ive never felt before, also heart burn, headaches, nausea, dizziness, constipation, and also very tender breast, ive took two home pregnancy test and they both come back negative. Was just wondering if there was any point going to the doctors now that i have come on my period to have another test done, any help would be great, thanx.