How long does a bid last?

I went through formal recruitment a couple of months ago at my school and i got into the sorority i wanted (: but with the circumstances i was put into i had to drop (& i dropped a couple days after i got my bid) which was unfortunate for me. but as i talked to my pledge mom she was really nice through what i was going through and she understood. now my question is that, could i go back to that sorority next fall or would i have to go through recruitment all over again?