Research around perinatal mental health is being updated all the time. Below are just some I came across when going through my experience, with some added since then. A link doesn’t mean the content is endorsed, accurate or up to date, just that it may be of interest.
Daily Telegraph article discussing Baby Centre Research that one in three pregnancy women have poor mental health in pregnancy
Guidelines for Ante-Natal and Post-Natal Mental Health (CG92) National Institute for Health and Care Excellence
Cohort Study of Depressed Mood during Pregnancy and After Childbirth Dr Jonathan Evans: BMJ publication
Antenatal Depression: Developing an Effective and Co-ordinated Service Response Nicky Stanley West Hull Primary Care Trust
Pregnancy Mental Health 