maternal cardiac disease

diabetes mellitus

uterine anomalies

fibroids

previous uterine scar

preeclampsia

antepartum hemorrhage

premature rupture of fetal membranes

fetal malformation

fetal death

Rhisoimmunization

left anterior (anterior to the left)

right anterior (anterior to the right)

right posterior (posterior to the right)

left posterior (posterior to the left)

head ( cephalic presentation )

buttocks with or without feet ( breech presentation )

in transverse lie ( shoulder presentation )

other clinical methods

Naegele's formula (method)

all deliveries

beyond medicolegal viability

regardless of the outcome

the current one

the abnormal ones

the abortions and delivery too

regardless of the outcome