I am an old timer.
I joined when pregnant and terrified. DS is now 11.
I just saw in active a thread about what to put in your hospital bag and it took me back to when I joined. So this is my brief MN history...
MN helped me
pack my hospital bag
breastfeed
Talk about my health
Talk about sleep issues with my baby
Think about my marriage
Realize I was being abused
Find support when husband ended marriage
Get legal help
Talk to women's aid
Support my career
Buy a house
Buy lots of silly things that made me feel good
Fix my house
Think about women in society
Reconnect with my feminism
Manage my career progression
Helped me when my heart was broken
Manage my self esteem
Understand my child and his autism
Supported moving schools
.... And made me laugh like a drain many times 
so thank you to all you wonderful women ( and some men, especially @pigletjohn)!
So what are your Mumsnet stories?