Hello girls, can I bathe my newborn baby on his tummy in a bathtub? Wi…

Hello girls, can I bathe my newborn baby on his tummy in a bathtub? Without a slide, just put a blanket and turn him over on his stomach or not? The head is still not holding well, I'm afraid he might drown, choke, God forbid. Opinions have split, one doctor says it's okay, another says it's not, who to listen to I don't know ?