Chapters often have different GPA minimums they'll accept. Unfortunately, the college GPA is usually higher than the high school GPA. Kandiss, I suggest you talk to the Panhellenic office at your school.
That said, you might want to go through anyway, just to meet people. But you may not be offered a bid - not because they don't like you, but because of the grades.
One way or another, good luck, dear! I hope you enjoy your new school and do well!