6 month check up

Jessica • Having my first baby due on June 18
Hey how did everyone's check up go? Everything went well with my daughter but the doctor wants her to come back in a month to re measure her head because her head circumference is at 90 percentile. The doctor said she's not worried because she's
Hitting her milestones and I never seen anything worrisome with her. She does eye contact. She's interactive with us. She talks up a storm. She rolling not quite sitting up on her own yet but tries to crawl/rolls. Should I start worrying?