The maximum number of different midwives you're likely to see for antenatal appointments is 3 and for postnatal appointments it's 3.
You'll see the same midwives throughout your pregnancy and after your baby is born, but different midwives when you're in labour.
The midwives are GP based and work within teams. The midwife will see women from that surgery both antenatally and postnatally. When she is not working, the women will be seen by another member of her team.