Psychic predicting due date??

Hannah
My baby's due date is August 11th. This morning my mum went and saw a psychic (who is very good and was accurate on a lOT of other things that se had no way of knowing) and she predicted that my baby will be born on the 16th August, or two or three days either side (13th-19th). What do you think? Should I relax and wrk towards the date as though it's my new due date, or keep going at the pace that I am, getting ready early and expecting her to arrive any minute now?! This is my first baby, so it's not unlikely that she'll be late - but do you think tht the psychic could be right??....x