Welcome to the forum SickandTired!
I'm in agreement with everyone here who says to take your time. For myself, even after fully believing that being a JW was not for me, it was difficult to see myself parting with my family. My family consists of myself (the oldest of 4), 2 younger sisters, 1 brother, and father and mother. I stuck with the religion for a while just to keep my family close to me. I remember my heart bursting with pain and my stomach knotting up with misery at the thought of losing my family, of them shunning me. I knew I couldn't be a witness but I knew I couldn't lose my family.
I imagine that being married and having children of your own makes the pain of such a decision much more difficult. I must admit that even after leaving I hated and resented the idea that they shunned me. I felt hurt and betrayed and I felt like a betrayer. It's been a year and I'm just now realizing that it is in fact my family who have chosen to shun and turn their backs on me- not that it makes the pain go away but I know it's not me pushing them away, as I stand here everyday with my heart wide open to them.
Also, for my younger siblings, I've set the example that if you have questions and you realize that you can not stay trapped, leave. Leave and live life! You don't have to stay clutched in the iron hands of the organization. I feel if I had all of these doubts and I was miserable and stayed in this organization, what kind of example would I be setting for them? Is staying in this organization allowing it to crush me emotionally, stiffle me mentally, and pin me in the right message to send to them? I feel that my young and growing siblings should have the opportunity to be who they are and express themselves without restriction, which this organization frustratingly does not allow. I feel I've opened the way for them to do that. I'm a pioneer in the family in that sense =P making it easier for them to leave too.
I've thought about if I had waited longer and my siblings grew up without seeing anyone question and leave the organization, they may not know how to cope and deal with any doubts they had. They wouldn't know anyone, wouldn't have any proof, that life outside the organization is not only possible but desirable. But now they know. Or they would have grown up not even knowing to check facts and ask questions and would accept the organization as all-knowing, always right. So when, because it was inevitable, I left, they would shun me whole heartedly instead of having the love that children have and having this moment in their childhood memories to reflect on when they get older asking, "was it really right that because of these teachings my sister, my family, our relationships were damaged?"
My little brother shows signs of homosexuality. One of my sisters has a strong sense of right and wrong, and asks questions that were difficult to answer. Another sister is a free spirit and doesn't respond well when she isn't able to paint and create and just be herself. If any of them choose to leave because of the nonsense they recognize they all know I'm here and they don't have to stay and be miserable and stiffled.
I know my relationship with my siblings is not the same as yours to your children. Your bond is much deeper and stronger than any sibling relationship could be. I feel you could be a much more reliable stepping stone out of the organization when they grow up and realize that they are more than Watchtower robots.