Around 4 weeks. At 5 weeks he would occasionally laugh when DH and I were laughing really hard. But at 7 weeks he is ALL smiles and laughs a lot more on his own.
Around five weeks. She also started doing this "ha" sound that I've convinced myself is her trying to laugh. But it sounds super sarcastic, so I guess she's laughing at us and not with us.
Re: When did your baby start to smile?
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DD2 8.22.13
MMC 1.4.17 at 16w
Expecting #3, EDD 1.29.18
BFP#1: 11.22.2012 EDD: 7.22.2013 DS Born 7.24.2013
BFP#2: 11.26.2014 EDD: 7.25.2015 *chemical confirmed 12.08.14*
LO didn't do it purposefully and consistently until 8 weeks.