Could I be pregnant?

Nicole
I came off the pill back in April I have been on the pill many years. I had my normal bleed as normal 3 weeks later I had a 7 day period, 2 weeks and 5 days later I got 4-5 days of spotting now 3 weeks and 3 days later I have had no sign of a period! I rang the doctors they just said I should have a period within 6 months because that's normal after taking the pill so just wait. I have took a few test all saying negative. But I have spoke to people and they have come off the pill and their test said negative even though they was pregnant! Can anyone relate or have any advice!!