Periods irregular and pregnancy

Ok so I have been on the pill for about 10 years finally got off of it because I want to start my family. When I was on the pill I had a period about once every 3 months. My doctor said that was completely normal on that pill (microgestin 1/20) when I got off I had my period when I was supposed to but now I’m 7 days late. I took a pregnancy test and it came out negative. I am trying to track my ovulation but it’s really hard because I don’t even have a period start date. The few times I have tried ovulation tests the test line is never darker than the control line. I am trying not to stress but I was just wondering if anyone has had success stories in my similar situation. I’m worried this is going to take me a while or if I should see my doctor or keep trying?