What a difference a month makes! The differences in Roman’s abilities from six-months to seven-months have been the most profound yet. On December 1st, he started sitting up on his own. On December 7th, he started pushing himself up into a “crawl” position. And the next day, December 8th, he broke his first tooth and then crawled (well, scooted) for the first time! What an extraordinary couple of weeks it…