At 2lbs, 3.5oz, Josie Duggar is a peanut -- but to mama Michelle, her little rugrat is getting "so big."
In a new episode of "19 Kids and Counting" -- airing tonight on TLC -- the primi's progress is evaluated on her 47th day of life.
Josie was born 15 weeks early -- and weighed only 1lb., 6 oz when she popped out.