Literally 3 days ago lol. 3 Months, he just just got weighed and is exactly 13 lbs :)
My son couldn't fit new born diapers. He was in size 1 at birth so about 1.5 to 2 months he was in a 2. He has had a lot of blow outs so we got bigger diapers after he left size 2 and haven't had a problem since.
2 months