When my wife was pregnant, I always had doubt, uncertainty & pessimistic about having a child and its impact on my personal "usual routine" lifestyle.
Now my baby is almost a year old, I would say worth the sacrifice for it despite unforeseen major setbacks during in labour.

Well, have to sacrifice "me time". For a long time didn't go cinemas, then probably once a quarter managed to go out yum cha with friends as most of my friends also with children, now always blow water through chat group only. Still able to exercise, but have to adjust and reduce the time slot accordingly.