Hi Angelica,
We are so pleased that you and your family had a magical time during your Walt Disney World vacation last November. I'm sure your little princess was so excited to celebrate her birthday among all of that Disney Parks magic!
As of now, there are a few events scheduled within the month of February 2015. The Walt Disney World Pro Soccer Class is scheduled for the month of February, and will take place at the
ESPN Wide World of Sports Complex. Crowds may be a bit larger, due to the wonderful soccer players that will be in attendance, but it shouldn't be to the point of overwhelming you. Also, on February 19th, the Disney Princess Half Marathon Weekend begins. Disney-loving runners, and their families, will be visiting the Resort, so the crowds may be larger than usual during that weekend.
I hope this answer helps with your vacation planning, Angelica. If you have any other questions, please ask us at any time. We're always here to help.
Have a fantastical Disney day!