hi, proly a bit late to offer any reassurance now, but saw this and wanted to comment -
i had my bcg when i was a baby, only a couple of months, cos we moved out to the middle east with my dad. i obviously cant remember it myself, but i asked my mum and she said i was the best out of all my sisters! (both older than me) in fact my dad was the worst, it was a basic surgery out there so just stand in a queue get injected type thing, well the guy in front of him puked and passed out and dad had to catch him! lol!
good thing about bcg as a baby is that the younger you get it, the smaller the scar. my scar's now only a tiny white dot, all my friends who had it yr9 at secondary school still have massive black and red things! and when all my friends were freaking out about it i didn't have to get it

sorry bit of a ramble there, basically - don't worry, go for it!
susie xxx