Mine was that I wish I had prepared for a different type of delivery than I wanted just so I could have known what to expect. I wanted a natural delivery no drugs or anything and ended up with a c section. All of the pants I had packed were not as accommodating for a c section incision as I would have guessed.
I also would have not let the little things bother me as much. Anytime someone would say something negative about how I was doing something I would start bawling. Now when they do I just tell them where they can shove it :) no parent is perfect you just have to try your best.
Also you don't need the expensive butt creams. Neosporin works on everything. Even diaper rash and it makes one less thing to carry in the diaper bag.
Oh and when you can buy travel sizes of stuff baby powder or what ever. My sister in law would carry around the full size box of wipes powder and anything else she needed and then wondered why her bag was so heavy and starting to rip.
And speaking of diaper bags. For me at least. Any size bag I use I pack it full. I don't know why. It just happens. Try to get a bag big enough to hold what you need but not so huge that it needs rollers just to be carried around :)
cutting their finger nails occurs on an every day basis...
dont worry too much about what clothes your baby will wear in the hospital... honestly i think 75% of my time shirtless and the baby was in her diaper until we left
i know about spray poop, the other night she managed to spray it from her change table, hitting our comforter agood 4 f away but hit nothing in between?
I learned that baby has their own bed for a reason. with my first I remember crying for litwo weeks straight while trying to get her to sleep on her own. I breastfed in bed for over a year and I think i'my still traumatized by the weaning experience of getting her to sleep alone. the 30 to 60 minutes it takes to get up and feed and change is easy compared to waking up every 20 minutes to make sure you didn't roll over them:) ( although I still check on their breathing because they are so quiet)
This is my first pregnancy, and hearing all these actually excites me honestly.
One of the best pieces of advice I've heard is don't worry you're 'doing it wrong'- you've never been a parent before and this baby has never HAD parents before! They don't know any different from what you're doing!
Little girls may not pee on you, but when my daughter was a month old, she was breastfed and had that really loose mustardy poop. As soon as I took her diaper off she squirted it all over me and her sister who wanted to watch. I swear it shot 3 feet through the air from her little heiny.