I need some advice - family problems

Hi

a couple of yrs ago I discover that my father (who died 9 years ago with a drink problem) had been married before for a long time and that they had had a baby (which died shortly after birth) I also found out that he had met my mum while still married and that she had got pregnant with me. My dad then left his wife when I was born and moved in with my mum!!! This came as a massive shock to me as I had no idea he had been married before etc.

I still get upset and have nightmares about all this and I am not sure what to do. Recently my partner and I were clearing out my mum's loft and I found alot of material belonging to him and his ex wife (luckily I knew who it was and I am glad I found the stuff rather than my sister) I have the support of my dad's sister and brother (who have told me about this) but I have not mentioned to my mum yet as I am not sure how she will take it but I would like to know why I was never told about this and if she thought I would never find out. I also have a younger sister who I feel should maybe know as I don't want her finding out the way I did!

Please help me

Don't know if this will help

My sister in law was married before she met my brother. She and my brother have been married ever since., She was divorced when they met.
My sister in law and my brother had two children and my sister in law never knew when would be the right moment to tell them she had been married before. It caused her a lot of anguish and for a very long time it was pushed aside while they all got on with their lives as they were.
I believe at some point she must have sat them down and told them but they were quite old when she did this. I mean going to junior or secondary school I think.
They may have thought she should have told them sooner, they may have thought she shouldn't have mentioned it at all I don't know but with the past being in the past and everyone living day to day lives it's so hard to drag the painful past into the present and affect any little lives that were oblivious to it all.

So maybe you were being protected or maybe they just never found the right time until it was too late.