Sep4 Two cauliflower heads are better than one – 27 weeks Posted on September 4, 2012 by admin Two cauliflower heads are better than one – 27 weeks 27 weeks: Baby is the size of a head of cauliflower Your baby is as hefty as a head of cauliflower, weighing in at almost 2 pounds. (Length: about 14 1/2 inches.)