I'm most shocked with myself for being upset about this! I just got the news that exDPs brothers girlfriend had a baby and was so excited! I have no siblings so he could very well be DDs only cousin. I was on the phone to DD who is in her dad's and was saying how exciting it is etc but it hit me then that I'll never even know him 
Sounds ridiculous but I was with ex for so long and know his family since my teens but this just feels like the start of her having this great big family that I'll have nothing to do with, next will probably be siblings if her dad gets serious with someone.
It's not jealousy or anything just sadness really, I'm so happy for her because I never really had any family and it's so important to me that she does, but I just feel so sad that I'll never be part of that part of her life.
Ugh I realize I probably sound barmy!