If there's no complications, gynae will usually advise 38th wk onwards, just to prevent miscalculation of EDD where baby is actually younger than the estimated EDD. Baby's lungs would also be more developed by then so 38th wk is a better choice. I had my e-csect at 39+2, I wanted to wait longer but my baby wld be too big by then, he's 3.8kg at birth.
Anonymous