Late??

Im 34 days late. Ive taken ample hpts they are all negative (just took one this morning) i had a blood test at 9 days and it was negative. I have been off bc for 6 months (i was on the pill and had a period every 3 months). Im usually normal but after being off this bc my cycle is 32 days and my periods are 4 days. My last period dec. 30, 31, & jan 1. Lasted 3 days (weird) so im not sure what i should do or if this has happened to anyone else?