When do you test?

St

Hi, just wondering when all of you take hpt? My cycle is usually anywhere from 60-85 days, currently CD63 and so tired of seeing bfn 😔 after almost 2 years of trying it really is heartbreaking! So do you all have plans for when you test? I'm thinking of doing every 2 weeks? I have seen a doctor but unfortunately they won't help as my BMI is too high.