Looking to Transfer

I am currently a student at IUPUI in the school of education. I am looking to transfer to Purdue in the fall of 2018. I am not enjoying my major and would like to switch to interior design. The minimum gpa requirement for that program is a 2.2 Although I have a 2.7 I am still worried about getting accepted. I was an average (at best) high school student and I was just wondering if anyone knows how competitive this program is and if i should turn my application in now or wait until the end of the semester and my gpa is higher. Thanks!