Thanks for the query.
Usually from 11th day to 14th day some increase in the size of the follicle should be noticed.
But according to your scan findings there is no much change in the size.
So you better undergo repeat scan after 2 days. You can go for hcg injection
with your doctor's advice after 2 days which will help in ovulation to some extent.
Once the size of follicle increases and ovulation occurs you can plan intercourse around that time which will increase the possibility of pregnancy