question about visa and work as a nurse

hi! im new here. i just want to ask about my current status right now. im graduating next year and planning to work in new jersey.

i will be marrying my fiance novemeber next year after i take the local boards here. my fiance has an hb1 visa, a working visa. and he told me that upon our marriage i will automatically have an h4 visa, which is a wife of a hb1 visa holder.

im planning to take nclex when i get to new jersey. but i dont wanna be a bummer while i review. i would like to work and help out as well.

my question is can i find a job in relation to my field with my degree (local board passer) and kind of visa (h4)? what do institutions in new jersey require upon hiring a nurse? do i have to pass cgfns and nclex first before i get to work?

i hope you can provide me answers.
thank you and more power

tracy