I am feeling very boated especially after i have eaten. Also very tired and washed out for the last week, my urine is clear coloured, my nipples feel a little sore and my period is now 15 days late. I done a pregnancy test wen i was 2 days late and came back negative. I had a miscarriage last year and since then my periods have been a little irregular but never late, always a week early. Could i be pregnant?