What homeopathy medicine can i use in the 9th month of pregnancy to have an easy delivery and reduce labor pain?

Depends: It is reported by some anecdotal reports that arnica montana may be helpful for pain much like an antiinflammatory drug would help. I am not sure if this would be effective enough though, but probably safe.

Arn.,Caul.,Cimic.&..: A double-blind study done in 1987 showed women taking 12c potencies of caulophyllum, arnica, pulsatilla, gelsemium & cimicifuga 3x/week in the 9th month experienced 40% less time in labor! there are also a variety of remedies one can take during labor as indicated to ease the birthing process. Homeopathy is totally safe to take when pregnant. See http://www.Elixirs.Com/faq.Htm for more info.