That you may lie there cursing every natural childbirth guru you ever read / listened to as you slowly come to terms with having induction, epidural, emergency c-section etc. when you'd been dreaming of floaty water births for 9 months.
That clary sage oil, even when diluted in water in a plastic hospital cup, will melt the cup and slice it completely in two!
That you should never read threads like this before your first birth - as I did - as they really are most unhelpful
That (as others have said) induced contractions come on hard and suddenly, and it's all too late when the MW tells you to breathe the gas and air 'as you feel the beginnings of the contraction', because there is no gradual beginning, and there isn't enough time for gas and air to take effect before it REALLY HURTS!
That when they tell you that you will still be able to move about and have an 'active birth' whilst being hooked up to a drip and monitor with about fifty million different wires, it's just not true!
That anaesthetic not only makes you shaky, but REALLY ITCHY for 24 hours or so afterwards. Which is nice when the room is already REALLY REALLY HOT and you're wondering whether your baby will overheat before you've even left the hospital.
That midwives do not all have the same opinion on how to breastfeed / whether you are doing it right or wrong, too frequently or not frequently enough. You may receive conflicting advice. And it may feel like your nipples are being attacked by razorblades from about day 3...
You may need a really good cry when you first get home, but it's okay