Stopped birth control in June, had normal period July and August...

Sara

So I stopped my birth control in June.... had a normal flow July and August lasting 5 days and 30 days apart... now September and October... nothing. Negative test and negative blood test.... husband and I are ttc. Did anybody else have post birth control issues?? Is my body just trying to adjust to not having the hormones anymore??? That’s what my doctor suggests!