I was meant to come on my periods on the 15/03/13 im normal never late i started to go to loo alot every 15 to 40 mins this happened two weeks before my period date then its started to burn when i went toliet i went to see nurse who said ive got a urinary tract infection and she gave me antibiotics but because i missed my period and my breast are sore near my arm pits back ache legs and feeling hungry headaches i thought i might be pregnant so i havent taken the tablets i did test on the 22/03/13 it was negative but today i noticed some light blood on tissue and pains are so bad i dont know if im pregnant or just my infection is causing me all these symptoms plz can anyone advice me im 34 and been trying for a year to get pregnant.