Big boy

I am so curious how big Aidan is now. He looks so chubby and big. I couldn't fit him in his 0-3 mos clothing anymore, well, I lied, I could fit him in, but I had to put the fist pulling him around which made him cry... so I grabbed his 3-6 mos clothing.. sure enough, it fits him.... I am guessing he must be around 12 lbs now... he is not even 2 months old yet.