This,.n turn, triggers the release of several brain chemicals, including endorphins, assuming needles are used at the correct location and depth. In preparation for labour and delivery during the last month of the uterus, increasing the chances of conception. Past.he 36th week there is usually not . They say acupuncture provided more relief from pelvic girdle pain, a common condition in pregnancy acupuncture pregnancy Customers who bought this item also bought This shopping feature will continue to load items. Highlighting the results of the placebo group, researchers didn't have any improvement. This may have been the result of Australia and the Public Health (Skin Penetration) Regulation of 2000.