rush and gpa

If I'm rushing as a sophomore and I have a 3.2 gpa, how many houses will I probably be automatically cut from? I'm an engineering major which is hard so my grades are not a 3.4 panhel average. I also pledged another sorority and dropped freshman year before initiation because I really just did not like that house or fit in, so I think my chances are slim to none at getting a bid to a house I like. I feel like houses wouldn't like that I depledged. Should I bother rushing?