Congrats! It's SO exciting isn't it? My first ever snake clutch (mine was corns) hatched just a few days ago.

As far as the original question, I've seen pics of some really lumpy bumpy weird looking BP eggs, and most of them (at least the ones that I know what happened) hatched out just fine. When I used to raise laying hens, we gave them ground up oyster shell in their feed as a calcium supplement, but it was just to make the eggs look prettier. Wasn't really necessary for them to be healthy and produce eggs, at least as far as I knew. Pretty sure if it was necessary, there would have been more calcium in the chicken feed to start out with.