I voted 40.5 and 41.5 even though it was 41weeks 2days for the second, so that is more like 41 weeks. The 40weeks 4 days labor was, I believed, helped along by membrane sweeping.
When I was growing up, it seemed most of the babies I knew being born were born after their due date. I thought that was normal. My older sister's first baby, born in 1977, was about 3 weeks past her due date, and ended up being a c-section after failure to progress. She had the classical incision, and then a scheduled c-section for her second, but went into labor early enough that it was before the date. When she got to the hospital, the doctor said that just a few pushes and the baby would be out, but they sadly did the c-section because of the risk of rupture. Anyway, with most of the pregnancies in our family, labor happened after the due date, not before.