I need some advice...

I'm in need of some advice.... I went off the pill end of July, I was on it for 10 years.... AF was due August 11... Still haven't gotten it... 2 weeks late and 2 negative tests. This past week was my scheduled ovulation week if my cycle were on track and I felt I was ovulating normal because of my discharge. Not sure if my cycle is just off because I was on the pill for so long or if I could be pregnant... Any advice would greatly appreciated! Thanks!