Representative images of immunohistochemical staining of MMP2 in cervical tissues from 8‐month‐old non‐pregnant (A) and late pregnant (B) mice. C, expression of MMP2 in cervical tissues obtained from non‐pregnant 3‐month‐old [NP(3), n = 6, open bar with diagonal lines], 5‐month‐old [NP(5), n = 6, closed grey bar with diagonal lines] and 8‐month‐old [NP(8), n = 6, closed dark grey bar with diagonal lines] mice, as well as late pregnant 3‐month‐old [LP(3), n = 6, open bar], 5‐month‐old [LP(5), n = 6, closed grey bar] and 8‐month‐old [LP(8), n = 6, closed dark grey bar] mice. Comparisons across all groups did not reach significance. Data were analysed using ANOVA followed by all pairwise multiple comparison Tukey's test and are presented as the mean ± SEM arbitrary positivity score. [Color figure can be viewed at wileyonlinelibrary.com]