hello, i have missed my period this month. Normal 28 day cycle this year up to may. May 28 lasted 5 days light for 1 day then heavy for 3 then light 1 day. June 27 as above July 18 as above.. i think i ovulated about 28 to 1 August ovaries were very painful on this day, lower back pain and pelvis legs ache. August period due 15 - no sign. To date i have experienced the following: leg ache, headache, nausea, low back aches. one minute i want to eat the next no appetite at all. Very tried metal taste in month. gone off sweet things, moods up and down. I have taken 3 pregnancy test and all are negative. I am due to have an internal scan next week but i am very worried now. Please help...