The effects of in utero BPA exposure on the percentage of pregnant dams of the total breeding pairs at 3, 6, and 9 months of age per generation (F1, F2, and F3). Graphs represent the percentage of pregnant dams from 3-15 dams per treatment group. Panels a, c, and e represent data for the entire cohort and panels b, d, and f represent data from females who weighed less than 40 grams prior to mating at each breeding cycle.