Ay, hindi ko makikita ang measurements mo, but if you're worried about baby's head size, mas maganda talaga to ask your pediatrician or OB during check-up kasi sila lang ang makakasabi if it's normal para sa age ng baby mo. A few of us moms in our group worried about the same thing before, and honestly ang doctors lang talaga ang makakatulong dito with proper measurements at development charts!