Breastfeeding involves up to 15 minutes attempting to get a latch and you aren’t sure if the baby’s making the mistakes or you are.
Getting little hands through little arm holes in vests is really really difficult.
You fail to manuover a (ridiculously overlarge) pram around a tight corner and end up doing some kind of elaborate three point turn while a queue of other pedestrians build up behind you.
You have no idea that getting (still ridiculously large) pram on the underground is going to be a problem until you are standing at the turnstile unable to get the pram through, hearing the platform attendant telling you to fold it up and knowing that you will never be able to work out how to do that.
You spend your time thinking “is he too hot?, is he too cold?, if I put a blanket on he’ll definitely be too hot though, hang on, is he still breathing?”
It takes you three days to get around to writing a blog post about being a new parent.