Baby weight gain

My daughter will be 9 months old on the 10th. We had a wic Appointment today and she weighed just over 13 lbs and measured a little over 25 inches. She has always been petite (was 6 lbs 4 oz when born) but is obviously gaining weight pretty slow. I don't under feed her, she eats 8 oz of baby food a day and breast feeds 4-6 times not including the snacking she does. If she's hungry she legit crawls on me and pulls my shirt down and gets boob herself. The lady said it's not a huge concern considering she's always been tiny and she's pretty long, but they are going to have a baby dietitian call me in a few days for advice and she has a doctor's appointment on the 12th.

Until then, I'm just wondering if any mothers here have any advice to share?