Unless you're specifically told you're on a hold, you're still under review. Give the process time. They're evaluating and comparing thousands of applicants. Everyone won't be reviewed in the first couple weeks. The application cycle runs well into the next year. Student are accepted off the waitlist the week classes start at times.
Update them when you actually have a substantial update. Not, "So I know I said I had 200 volunteer hours at X hospital. Well it's been a month since my secondary and I'd like you to know I'm now at 250!"
Come on. That just sounds obsessive.
Unless you've had some extremely profound experience in the last month, just wait. Patience is a virtue.