hi, my period was due on the 20th march it has been regualr for the last two years, so when i was 6days late i got a bit worried went to docs he said i could be pregnantand have to give a urine sample in two weeks. my last period on the 22nd feb was rather light and came on my period yesterday the 27th again it was light and my periods are normally really heavy. ive never felt so tired or nauseaous, my breast feel a little more tender than they normally do. am i pregtnant or is it something else?