Ah thank you for the kind advice dotty. Actually I already have a child and did have PND after the birth, for about 18 months, it was dreadful. DP and I both knew it was mostly due to my past that I felt the way I did, I guess we hoped that the experience of PND will help me be more resilient to it happening again next time.
I'm currently having therapy for health anxiety disorder but even though I've been going for months I haven't mentioned anything I'm disclosing here to my therapist. It's cognitive behavioural therapy and we spend very little time discussing anything apart from coping strategies and techniques. She knows very little about me, and I think from what I've gathered from people I've spoken to, if I want to talk about my past, I have to find a counsellor.
I can't say I won't carry on trying for another baby, there's something inside me telling me it's time now if you know what I mean, and any rational argument against it tends to get overruled by my broody side. But I very much appreciate your honest advice x