I have posted about this before on here and got some great advice but basically I'm having some more issues and the jealousy has returned 
My SIL is 26 and has just had twins, my parents bought bro and SIL house, business, will provide free childcare etc. They live very close to my parents and see them every day, meals together, coffee, walks - everything.
I live 2 hours plus away from my mum and although we are v close - I just don't see her much.
I have a temporary teaching contract which I was told would be made permanent this year - told this week that it won't due to budget so I'm temporary for another year.
I'm 31 and basically the prospect of having a baby is a distant one due to finances. We couldn't afford to live on my dh's salary and if I left to go on maternity leave I would lose my job and they are very hard to come by in teaching where I live.
I think everyone thinks that I'm not interested in children of my own - I really am and the cosy family/grandparents thing that my mum and dad and brother have make me so jealous.
Am so aware of my age and hate acting like a jealous cow. No one in RL would understand this at all - sorry.