Big head circumference

I just had my 2 month appointment for my baby. They said her head grew fast as it went from 33 cm when she was born to now 39 cm. Which is 71 percentile. The ped wasn’t concerned because she said she’s overall grown a lot. She left the hospital at 5 lbs 10 oz and now weighs 10 lbs 10 oz she also grew 6 inches from birth as well. The ped thinks it’s just because of how much she’s grown. But now I’m so worried. I’m going to go back at 3 months to check. Has this happened to anyone and everything’s been okay?

Update: at 2 months and 2 weeks her head circumference is now 39.5 cm. I’ve been measuring.