It depends on the culture that the two of you have and how literate you are. For partners who are in urban areas alot is shared both maternal and paternal. In rural areas mostly what is shared is maternal and husbands think that this is a woman issue. They dont even accompany their wife to antinatal even the first visit which is mandatory in most countries...
That is an interesting question. I think the first item which the father should be taught is understanding the pregnant mother and showing protective approach.Biological and physiological information could be placed on the 2nd step.