Women only! Do any of you know why i could be experiencing leaking out of my ? Have any of you had this?

I CAN NOT BE PREGNANT BECAUSE I HAVE HAD A HYSTERECTOMY! I have had 2 kids; the youngest being 19 months. I sometimes leak without squeezing them on the right just out of the blue. The fluid is clear sometimes & then others its white & clear. Any info would be appreciated! Thanks!