DD is 7.5 months and has never blown raspberries. She babbles - no real repetitive consonants yet (dada, etc) but lots of little baby babbles (ah-ga, shrieking, etc) - but has no interest in blowing raspberries at us. I do it to her and she just laughs.

I didn't realize that was a real milestone but the doctor seemed a little concerned at her 6 month appt and then again at 7 months when we went back for vaccines. I'm not really too worried but curious if anyone else has a baby who didn't blow raspberries?