Hi. I have a 16mth old and am 19 weeks pregnant. I had very bad PND with William for about 1 year. I think this was aggravated by the fact he had colic and reflux till he was 5mths and did not sleep through till he was 1yr. I am terrified of having a second baby and also very worried about getting PND again, especially since I am not sure that it has gone away totally yet. Is there anything I can do to prevent getting it again?