Ok I love my DC put...
Giving birth, especially 'natural' birth. Squeezing a 9lb baby out of your vadge with narry a paracetamol in sight isn't a spiritual epiphany, really it isn't it.
The baby & toddler years. I got lots of "Enjoy it while it lasts! They grow up so fast!" from well-intentioned older ladies, to which my internal reaction was usually "not fucking fast enough!!!!"
My eldest was a horror sleeper though, which may have coloured my judgement
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