hey theres nothing to be nervous about, enjoy the day its very relaxing and goes quick..
i took a couple magazines(lucky i had a 8hr wait from my admission time),i took a bottle of water(def need) they’ll give it to you at the hospital but incase you run out during the night and dont want to buzz a nurse.
i cant think of anything else just the usual like your phone,sports bra (if needed),wipes(to freshen up in the morning)
goodluck xxx