grown 1/2 of an inch

I have been using Natureday for 3 months now and I have only grown 1/2 of an inch (I grew that amount last month). This evening when I took my measurements I realized that I have not grown anymore.For 2 years, I have been trying to grow my beasts. I have used Boost Your Bust, and Breast Actives. I had dedicated a year to each program, and ended up with no results. At the beginning of this year I came across Natureday; I decided that I would try one more time, one more program. Just like with the last two I plan on staying with Natureday for a solid year. I knew that it might take at least 2 to 3 months for my breasts to start reacting towards the product. Last month was the second month and I had noticed that I had grown 1/2 of an inch. I was very happy but this month contains no progress. My cup size before I started this program was a 32AA. My cup size now is a small 32A. My goal is to be a 32C. I know it might take more than a year to reach that cup size and I am willing to go that distance. However I need to see more results. Am I doing something wrong? If so, what is it? Are there any supplements I should take along with my pills, like vitamins, amino acid pills, protein pills, etc. ? Please give me advice.