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The primary objective of this study is to determine the rate of spontaneous pregnancy after bilateral salpingectomy within two high volume tertiary health care centers. The secondary objective is to compare the calculated rate of pregnancy after BS with published rates of pregnancy after other methods of sterilization, such as bilateral tubal ligation. This is a retrospective chart review study. Two high volume tertiary health care centers Any patient who underwent bilateral salpingectomy for sterilization in the Indiana University Health or Eskenazi Health systems between January 2018 and September 2023. N/A. 2967 patients were identified as having undergone a procedure with a CPT code that represented tubal surgery (58600, 58605, 58611, 58661, 58670). Of these patients, 1028 were identified as having undergone a bilateral salpingectomy (including laparoscopic, postpartum, or at the time of cesarean section). 186 patients were excluded because of postmenopausal status, incomplete records, or being deceased within a year of their surgery. 14 patients were excluded because they were undergoing IVF after their surgery. Of the 1028 patients who underwent bilateral salpingectomy, 3 patients reported having a positive home pregnancy test. All 3 of these patients had negative pregnancy testing in the office shortly afterwards, thus, the rate of spontaneous pregnancy after bilateral salpingectomy in our study population was 0-0.3% over a 5-year period of time. Based on our data, the rate of spontaneous pregnancy after bilateral salpingectomy is 0-0.3%. This is lower than the published rate of pregnancy after all methods of sterilization of 1.33% by Peterson, et al 1996. This supports bilateral salpingectomy as a high-quality method of contraception and should encourage providers to perform salpingectomy when feasible. Future studies with a larger patient population and longer follow-up are needed to further support our findings. [ABSTRACT FROM AUTHOR]