Cumulative implantation rate results after the first, second, and third FE-SET. (A) IR was analyzed in women (n = 4429) with up to 3 consecutive FE-SETs. Of those who failed to achieve implantation after the 1st FE-SET (n = 1335), 764 (57.22%) underwent a 2nd FE-SET. Of those who failed to achieve implantation after the 2nd FE- SET (n = 324), 141 (43.51%) patients underwent a 3rd FE-SET. (B) Implantation rates after 1st, 2nd, and 3rd cycles. The number of transfers is shown at the bottom of each bar (Tukey’s range test = * p = 0.042, ** p < 0.001). (C) The cumulative IR after up to 3 consecutive FE-SET was 95.2% (95% CI: 94.0%–96.2%) as illustrated by Kaplan-Meier estimates reporting also cumulative IR results after the 1st (69.9%; 95% CI: 68.5%–71.2%), after the 2nd (87.9%; 95% CI: 86.7%–89.0%) FE-SET respectively. The number of transfers is shown at the bottom bar.