I had terrible PND with DS. He's 17 months and I've found I'm expecting again (a happy accident). I'm looking into ways to avoid it reoccurring and luckily prior to conception I'd taken up exercise and generally looking after myself more. Don't get me wrong - I wasn't overweight or unhealthy in first pregnancy but I'd certainly not exercised and didn't really eat as well as I could have. Would love advice, thoughts and feedback.