Csection verses vag

Ive had one vag baby and two c sections my c sections was because of baby being to big (my son was 10lbs) my 2nd c section was just a repeat because we thought she would be just as big. I am pregnant again and was wondering if it is possible to have a vag baby after 2 c sections. My worry is that i got pregnant so fast after my last baby. She will be 8 months old in two weeks! I am surprised and this will be our last baby so i want to avoid a csection this time but i am also not expecting it to happen because my babies are so big..has anyone done it before?