how far along am I?

Question

Sooo literally my app says I'm 4 days late and I got a proof of pregnancy the estimated due date is 1/20/18 so I put that in am I really 4wks and 6days when you're only a 4 days late? I know they go based if of the fist day of your last period so how far along am I really? Is it accurate?

Answer

If AF was supposed to come 4 days ago, then you're 4 weeks and 4 days pregnant. If the doctor told you your due date, then you put that on the app and it will tell you how long you're pregnant.