Advice needed

Charlotte
Hi all, 
I was told I have pcos last year but given very little support from GP! My fiancé and I are now trying for a baby and I have been off the pill since Feb 15. I have regular periods every month until November although I couldn't tell you my cycle length or if I was even ovulating. I started using Glow to help me track ovulation etc at the end of October and I was due to come around 18-20 November. I have taken "several" tests and they all said negative. Although next week will be three weeks since I last had unprotected sex. I feel like I am about to come on although I don't have all the symptoms I usually do. I am tired and am just worried what this means if the tests are right.
Has anyone else had similar experiences.  
Thanks