Unless the mother has Hep B or high risk (is a drug-user that share needles, a sex worker or sexually promiscuous or in a relationship with somebody that's promiscuous) there is no reason to give a newborn a HepB shot at birth. It's one the most ridiculous things. Not a doctor though, so talk to your OBGYN about it - but have some fact ready since quite a few of them will act like you're an irresponsible baby-killer if you ask them not to give a vaccine or put antibiotics on their eyes.