Good to know youre finally starting to move forward against all odds, One thing I admire in anyone is the desire to change
...I cant help but notice your life holds host a collection of issues that transitioning on its own will not change. One thing I have to keep in mind myself is to not be too bitter and angry all the time, and try to come at a peaceful angle, Im not even all there yet so its difficult. You sound like theres going to be a lot of crossfire between husband and parents.Try to work with your husband and be calm and level headed. I feel bad for your son as well...who's likely caught in the crossfire in all of this, if there's anyone who deserves love and will come to terms and understand you, its him, so keep that in mind and do your best to care for your child.
Otherwise, its going to be a lot of hurt in the process, but youre going to have to settle all this and hope that becoming the man that you are will elucidate some things.
Wishing you the best