Is theresomething wrong?

I had an operation in feb last year to remove my endomitriosis. I stopped taking the pill the day before and never took it since as we are trying for a baby the thing is I have only every had 2 perios since the op and the last 1 was in october do you think somethings wrong and why arnt I conceiving yet? I dont even know when Ims suppossed to be on my period anymore.