I had the iud removed 11 months ago due to complications of bleeding the whole time... So my periods were very irregular until July.. I have been having them on the 6 th of every month. Now its October 14 and still no period I took 6 tests and all said negative is there still a chance that I can be pregnant >

It's possible, but it could also be just an off cycle. Wait and see what happens when your next period would be due and see what happens. Test again at that time, or see your doctor for a test, if still no period.