I am on birth control and i am 6 days late... could i be pregnant? My breast are tender as usual for when i get my period but it's late 6 days and i have never been late in my whole life... keep in mind that ever i started talking the pill my period has gone from 7 days to 3/4 days... and i am taking the pill like clockwork every morning at the same hour... sometimes if i sleep in maybe 2 hours later..