<p>I'm a junior and took two summer classes. One class I think I got a C even though I got all A's on my three papers, one B on my test and a C on another test. I got a D in my statistics class. Both classes were only four weeks. My GPA without these classes was at 2.7 and now I'm sure my Gpa will go down significantly. I'm trying to aim for dental school and min Gpa is 3.3-3.5. I feel like I'll never make it and my son is not even born yet so now I'm afraid that I will do continuously worse! If I retake the class that I got a D in, and somehow ended up with a B will that B replace my D, or will that D still be calculated into my GPA? Will I ever achieve at least a 3.0 before I graduate...</p>