Oh Jo,
You did this to yourself to bring your body to a better place!! You are in the middle of recovering from a life changing surgery! You will have soooo many emotional hurdles to overcome ( most will be your own head games). Relax, let your body and soul take the time it needs to recharge & reconnect with your "new" self!!
Most importantly, just because your Husband's son was born from your heart instead of your belly does NOT mean you are not a real Mommy!!!! You LOVE him that is the only thing that matters