Ttc Irregular

My husband of 4 years are ttc for the past few months. But AF is very irregular especially now, I'm blaming stress for the reason since its been 63 days since AF. Last year it was nearly 5 months with no AF, doctors claim too much stress and high BMI stats. Working in retail around the holidays causes a lot of stress, so I'm believing thats the case. Hoping not something more serious. But now hubby and are more serious about TTC. I have tracked my AF for years and recently started here. But have never been so irregular. Was on birth control for 2 years 4 years ago. Freaking out that possible conception will never happen. Should I be freaking out more? I know I need to probably consult a doctor. Anyone having the similar problems?