DD2 is 3 weeks old. My first bub had a dummy after two days of continual screaming from birth....until he was 3.5 yrs old. And to be honest it was a PITA as he became so dependant on it. Although it helped him sleep as he was an unsettled baby.
DD1 didn't seem to need one. She was initially calm as a newborn, but it all changed at 9 weeks when she became very unsettled and always needed boob to settle multiple times a night until 2 yrs old. Later attempts to give her a dummy failed. She would never take one as I left it too late. And all I wanted was for her to take comfort from something other than my boobs all the time!
So, I have a dilemma this time whether to introduce one or not. I gave it to her last night during particularly unsettled time and it helped. Should I continue?