future - I have a low milk supply, so I never was able to get much of anything from a pump and with being at work, my OH ended up having to give formula during the day, so it was important to me that he be exclusively breast fed at night. I wanted him to have all the breast milk I could give him. I also went home at lunch and breast fed him every day.
The doctor gave us pretty much the same info as can be found online at the cdc website. He told us the common side-effects, etc. The vaccine has been shown to be about 71% to 100% effective at preventing chickenpox and kids who do end up getting it only get a very mild case of chickenpox. He'll get a booster shot when he's older (I believe it's 4-6 years) which has been shown to increase the effectiveness.
I was in 4th grade when I got them and it was horrible. I have a lot of scars from it because the itching was intolerable. My OH never managed to get it despite his mom trying to expose him, so that's another reason to vaccinate our LO, to protect my OH from possibly catching it from him now that he's older.