Think your DUE DATE is wrong?

Anyone else think their due date is off?

We go by the LMP( actually the first day of your last period you had) which mine was October 29th.

According to this I’ll be 40 weeks JULY 29th which is my induction date based on be having a healthy first born, circumvallet placenta this time, and my mother having possible heart surgery that I would like to not go into labor during. They told me my due date was AUGUST 4th, but my baby babe has been measuring 2.5 weeks ahead the entire time!!