I've actually had a bottom egg pip into an egg above it before the top egg pipped. When the one on the bottom finally found a spot that was free and clear there was SO MUCH embryonic fluid. Had no idea what was going on. But after they all pipped and made it out I investigated and found out that it had made a nice slice into the top egg. Didn't hurt any of the baby snakes and the female stingerbee out of the bottom egg is sitting nice and comfy almost at breeding size currently. You'll be fine, life always finds a way. Just let em do their thing and everything will be A-OK.