When did your baby(s) first roll over from their belly to their back?

Question

Got really excited today my 3 month old rolled over from belly to back three times today was wondering what age other babies started to do this

Answer

My oldest did it twice when he was two or three weeks old, once when he was 4 months old and then didn't really roll again until after he walked.  
My other two started rolling at 2 months and 3.5 months.

Answer

My daughter did belly to back at 2/2.5 months and then back to belly at 3.5 months.

Answer

Mine did his first roll around 3 months, but now he's 4 months and never rolls. It's so frustrating lol.

When did your baby(s) first roll over from their belly to their back?

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