You
Maternity notes
Straws (I was too out of it the drink from a cup!!)
Lip balm
Flannel
Wash bag with everything you need to shower, toothbrush etc and shove a toothbrush in for your birth partner too you could be there a while.
Clean t-shirt/top for birth partner
Bikini top if having a water birth and some shorts for the birthing partner if they're wanting to get in the pool plus spare towel.
A dark coloured bath towel
Dark coloured pj bottoms (x2) and some loose tops for giving birth in/feeding in
Dressing gown
Flip flops
Music on your phone/speakers
Phone charger
Maternity pads
Paper knickers
Black (cheap primarni) knickers
Nursing bra and boob pads
Comfy slob clothes to go home in (unless you are Kate Middleton of course
)
Snacks/drinks
Baby
Clothes for the baby, maybe 3/4 outfits and vests. (You can pack more in another bag to leave in the car in case you are kept in).
Little hats
Muslen squares
Nappies
Water wipes
Outfit to take them home in
Nice blanket/toy to take pics
Anything you might need to keep you entertained in case you are induced.
It's 5 months since I had my second baby so I've probably forgot things now. What I did was pack a bag and then packed an extra bag in the car with the stuff I didn't need right away, like the babies going home stuff, my going home clothes etc. So you don't look like you are moving in when you arrive.
Also place the outfit the baby is going to wear once born in a plastic bag on top of your bag so your birth partner can get to easily (I'm assuming it's a man) you'll be in no state/otherwise engaged to start fishing about in the bag when they say get your babies outfit ready!
Good luck
hope it goes well when the time comes!