parity (number of children you have) - la parite
vagina - le vagin
cervix - le col
labour - le travail
delivery - l'accouchement
the perineum - le perinee
midwife - la sage-femme
the placenta - le placenta
the umbilical cord - le cordon ombilical
the amniotic fluid - le liquide amniotique
the amniotic sac - la poche des eaux
varicose veins - les varices
stretch marks - les vergetures
mucus / discharge - les pertes blanches (f) / les
muqueuses (f)

scan - echographie / echo
scan operator - echographiste
nuchal fold - clarté nuchal
amnio - amniocentèse
blood test - prise de sang
due date - date prévue d'accouchement (DPA)
triple test -triple test

There are a number of official blood tests which include:
toxoplasmosis -toxoplasmose (toxo)
rubella - rubéole
syphillis- syphillis
rhesus- rhesus
They usually test for HIV (VIH) too

dila(ta?)tion - la (phase de) dilatation
expulsion/pushing stage - l'expulsion (f)/ la phase
d'expulsion
episiotomy - l'episiotomie (f)
3rd stage/delivery of the placenta - la delivrance
epidural - la peridurale
first period after delivery - le retour de couches