That it is ok to scream and grunt and moo and wail, even if your midwife is telling you to shut up, they won't tell you off when it's all over.
That it is OK to scream "Fuckkkkkkk offfffffff" to the midwife that is telling you to shut up, as long as it is in your head.
That it is OK to make lots of mess on the floor when you stand up for the first time, because they sent the cleaners in while you were being stitched up.
That pethidine is the route of all evil, and I would rather have to give birth to 6 babies in a row with nothing whatsoever than go through pethidine again.
That epidurals don't actually always work.
That Gas and Air only works if you breathe it in.
And that no matter how much you scream, rant, rave, moo, wail, cry, tell people to fuck off in your head, make mess, whether the drugs worked or not, and however many people have seen you fanjo in the last few hours, once the baby is born, and you are holding him, none of it matters in the slightest.