Acupuncture is safe to use throughout your pregnancy.
It is particularly well researched for nausea, morning sickness and even in hyperemesis.
A technique know as moxibustion is used to good effect to turn breech babies from 34 weeeks.
The evidence for reduction in labour time is as yet inconclusive due to a lack of studies but a highly respected review paper suggests that there is evidence that it can increase uterine activity, assist with cervical ripening need less intervetion with the use of other induction methods.